New Frontiers & Planet TV Studios exhibits innovative exposé on Dr. Daniel C. Allison's surgery-focused advancements.

Starting March 2024 on domestic television & internet viewing.


BOCA RATON, FL, UNITED STATES, March 1, 2024 / ReportWire.org / -- Planet TV Studios, a renowned craftsman of state-of-the-art media productions, is overjoyed to present its freshest documentary series, "New Frontiers," featuring the revolutionary exploits of Daniel C Allison, MD, FACS. This intriguing screening will elucidate the revolutionary breakthroughs propelled by Dr. Allison, a board-certified musculoskeletal surgeon skilled in musculoskeletal cancer care, involved reconstructive hip and knee surgery, complex trauma, and conditions for limb salvage.

"New Frontiers" guarantees an captivating experience exactingly constructed to showcase revolutionary institutes transforming the terrain of international health services.

Be sure not to miss the window to experience the episodes of the series airing in the next quarter of 2024 on domestic TV, Bloomberg TV, and distributed over-the-top via options including Amazon, Google Play, Roku, and multiple outlets. Attend and be encouraged by the outstanding developments shaping the progress of healthcare.

Planet TV Studios is elated to have Gina Grad back as the lead presenter. Gina is an accomplished penman, podcast host, and radio presenter based in Los Angeles, CA. She formerly appeared as the secondary host and news anchor of the Adam Carolla Show, a podcast that claimed the record recognized by Guinness for the highest number of downloads. Gina has also served as anchor on KFI 640 AM and been the host on morning segments on 100.3 FM. At present she is the host of "The Bryan and Gina Show, The Official Podcast of LA Magazine." In besides her on-air career, she is the documentarian of "My Extra Mom," a child-oriented book intended to support children and blended family members in addressing the struggles of stepfamilies.

Daniel C. Allison, MD, FACS, carries formal board certification in operative orthopedics and focuses on cancer-related bone care, detailed pelvic and lower extremity reconstruction, significant trauma, and limb salvage challenges. He is designated as the Associate Director of Orthopedic Oncology at Cedars-Sinai Medical Center and functions as Co-Director of Pediatric Orthopedic Oncology at Children’s Hospital of Los Angeles (CHLA). Dr. Allison was the primary surgeon in southern California to conduct the novel osseointegration implant surgery on a patient with a leg amputation, which is profoundly bettering lives.

Dr. Allison is a Accredited Fellow of the American College of Surgeons (FACS) and the American Academy of Orthopedic Surgeons (AAOS). He is also a constituent of eminent organizations such as the Musculoskeletal Tumor Society (MSTS), the Orthopedic Trauma Association (OTA), the American Association of Hip and Knee Surgeons (AAHKS), and the American Orthopedic Association (AOA). He is also a participant in service in the United States Navy Reserve at the level of Commander (O-5) and assigned to Iraq as a armed forces surgeon.

MEET DR. ALLISON: A FRONT-RUNNER IN ORTHOPEDIC ONCOLOGY & ADVANCED ORTHOPEDIC DISORDERS

Distinguished for his substantial specialization and seasoned career in cancer-related orthopedic care and complex limb salvage conditions, Dr. Allison is a authoritative figure in addressing malignant growths of the musculoskeletal system, including soft tissue sarcomas, bone neoplasms, and bone metastatic disease, in together with elaborate reconstructive techniques for cancer-like conditions, like critical trauma events, septic conditions, and revision surgeries in orthopedics resulting in significant bone loss and joint failure. Dr. Allison has authored diverse critically reviewed papers and provided discourses throughout the world on bone cancer treatment and his leading-edge reconstruction methods.

In his early professional days, Dr. Allison committed himself to the cutting-edge direct anterior hip replacement technique, when it was considered a revolutionary approach, innovating a patent-protected retractor system (TSI Phantom), augmenting the precision and feasibility of the process using standard operating tables and rendering available the sophisticated operation to more surgeons and patients.

MOREOVER, DR. ALLISON SERVES AS THE PRIMARY SURGEON AND DESIGNER FOR NUMEROUS SURGICAL IMPLANT SYSTEMS:
• Patriot Trans-Femoral and Trans-Tibial Osseointegration (OI) Implants: Signature Orthopedics
• Proximal Tibia Endoprosthetic Implant: United Orthopedic Corporation
• Tribute Minimally Invasive / Bone Preserving Hip Arthroplasty Femoral Stem: Ortho Development Corporation
• Truliant CC Revision Total Knee Replacement System, Exactech
• Constrained Acetabular Liner: United Orthopedic Corporation
• Resolve Modular Revision Femoral Stem: United Orthopedic Corporation
• Revision Total Knee Arthroplasty System: Corentec
• Carbon Fiber Skeletal Fixation Implants: Carbo-Fix.

PIONEERING ORTHOPEDIC ONCOLOGY AND COMPLEX RECONSTRUCTION SPECIALIST IN LOS ANGELES

Dr. Allison has released upwards of 20 academic papers, has co-created six book chapters, and has delivered hundreds of presentations nationally and internationally at meetings of surgical societies on elaborate joint reconstruction techniques, issues in orthopedic surgeries, and surgical management of musculoskeletal tumors, illustrating his research papers, abstracts, and teaching demonstrations. Additionally, he serves as an editorial board member and peer-reviewer for notable journals.

Dr. Allison obtained his Medical Degree with Honors from Baylor College of Medicine in Houston, TX. He accomplished his postgraduate education at USC in conjunction with Los Angeles County Medical Center, including a combined internship covering orthopedics and general surgery, surgical residency in orthopedics, and fellowship training in musculoskeletal oncology and pelvic reconstruction. He has been serving on the faculty at Cedars-Sinai Medical Center as an Assistant Professor (#2 in the nation in orthopedic surgery per US News & World Report 2023) for the past eleven years, at Children’s Hospital Los Angeles, ranked #2 nationally in pediatric orthopedic surgery by US News & World Report in 2023 for the last more than eight years, and a member of the US Navy reserve for the past 7 years.

About Planet TV Studios
Planet TV Studios originates trailblazing, real-world series providing analytical updates on important industry, health, and socially conscious matters.

For more information about Dr. Daniel C. Allison MD, please visit https://drallison.org.

For more information about the series, please visit https://planettvstudios.com / https://planettvstudios.com/backstage/ or contact Christian Alain at 888-210-4292 x100 or email [email protected].


Acclaimed for his extensive experience and exposure in tumor orthopedics and advanced limb salvage scenarios, Dr. Allison is a leading authority in combating cancerous growths in the musculoskeletal system, including soft tissue neoplasms, osseous malignancies, and metastatic osseous cancer, in along with elaborate reconstructive techniques for diseases with cancer-like features, like acute high-energy trauma, disease-causing infections, and revisions and complications in orthopedics that yield significant bone defects and joint compromise. Dr. Allison has created various scholarly works and hosted discourses on a worldwide scale on orthopedic cancer care and his advanced reconstruction techniques.

At the beginning of his career, Dr. Allison lent his expertise to the direct anterior approach to hip replacement, when it was considered a revolutionary approach, innovating a state-of-the-art retractor system (TSI Phantom), optimizing the precision and operability of the clinical procedure using normal operating tables and rendering available the sophisticated operation to a broader range of surgeons and patients.

ADDITIONALLY, DR. ALLISON ASSUMES THE ROLE OF LEAD SURGEON AND DESIGNER FOR MANY SURGICAL IMPLANT SYSTEMS:
• Patriot Trans-Femoral and Trans-Tibial Osseointegration (OI) Implants: Signature Orthopedics
• Proximal Tibia Endoprosthetic Implant: United Orthopedic Corporation
• Tribute Minimally Invasive / Bone Preserving Hip Arthroplasty Femoral Stem: Ortho Development Corporation
• Truliant CC Revision Total Knee Replacement System, Exactech
• Constrained Acetabular Liner: United Orthopedic Corporation
• Resolve Modular Revision Femoral Stem: United Orthopedic Corporation
• Revision Total Knee Arthroplasty System: Corentec
• Carbon Fiber Skeletal Fixation Implants: Carbo-Fix.

ORTHOPEDIC ONCOLOGY AND ADVANCED RECONSTRUCTION SPECIALIST IN LOS ANGELES

Dr. Daniel C. Allison, MD, FACS: A Visionary in Modern Surgery

Throughout the bustling domain in the study of medicine, not many titles generate both respect and admiration similar to Dr. Daniel C. Allison, MD, FACS. His journey—a blend of rigorous training, innovative surgical practice, and a commitment to advancing patient care—stands as a beacon for both colleagues and patients alike. This full-scale narrative investigates Dr. Allison’s history, his achievements in surgical science, and his principles regarding health innovation, as it sketches a lively portrayal of a man who has dedicated his life to excellence in medicine.

A Trajectory Defined by Commitment and Excellence

Dr. Allison’s path into medicine was paved with an insatiable curiosity about the human body and an enduring commitment to alleviating suffering. During his formative years filled with significant intent, he became captivated by the scientific fields early on, spellbound by the convergence of science and technology. His preliminary studies established a solid base that would carry him toward a distinguished status within modern operative medicine. Following his outstanding undergraduate career, Dr. Allison pursued medical school with a clear vision: integrating the craft of surgery with state-of-the-art technology and scientific inquiry. Over the course of his medical studies bore witness to an unwavering determination to comprehend the theoretical foundations of human bodily functions and the applied problems of diagnosing and treating severe conditions. His integrated approach to study and treatment set the standard for his career.

The Rise of a Surgical Visionary

Learning Milestones and Early Professional Experiences The trajectory of his learning is a testament to his loyalty to both surgical technique and research excellence. During his residency he came across a range of operative methods and novel approaches that in time became integral to his practice.

In the nascent stages of his surgical career were devoted to training under eminent mentors—a phase noted for its prolonged sessions, intricate procedures, and ceaseless ambition for mastery. One of the pivotal moments in Dr. Allison’s career was his decision to further specialize, a choice driven by an earnest desire to make a tangible impact on patient outcomes. This specialization not only deepened his technical expertise but also set him on a course toward leadership within the surgical community. His board certification and subsequent fellowship with the American College of Surgeons (FACS) were acknowledgments of his skill, dedication, and unwavering commitment to high standards in surgical care.

Accepting State-of-the-Art Technological Changes

The dynamic advancement of technological tools in healthcare over recent years has reshaped operative practices. Dr. Allison was quick to embrace these changes, recognizing that innovation was key to enhancing patient outcomes. From minimally invasive procedures to the integration of robotic assistance in the operating room, his career has been marked by an openness to new methodologies that challenge the traditional paradigms of surgery. Dr. Allison’s practice is a reflection of this innovative spirit. He has been involved in pioneering techniques that reduce recovery times and improve the precision of surgical interventions. His work not only underscores the importance of technical skill but also the value of integrating advanced technologies to achieve better, more predictable outcomes for patients.

A Focus on Patient-Specific Treatment

Tailored Medical Approaches in Action

At the core of Dr. Allison’s practice resides a fundamental conviction for custom-tailored patient service.
In an era where healthcare can sometimes feel impersonal, he distinguishes himself by taking the time to understand each patient’s unique history and needs. This individual-focused strategy is demonstrated through his surgical skills along with his supportive communication with patients and families. Dr. Allison’s patient meetings transcend the typical analysis of symptoms and therapeutic choices. They are conversations that consider a patient’s lifestyle, emotional well-being, and long-term health goals. This holistic approach ensures that each patient is treated as a unique individual rather than just another case file. It’s a doctrine that echoes with those who value both professional operative expertise and warm, considerate care.

Advancement and Scholarship

Beyond the operating room, Dr. Allison serves as an ardent champion of patient enlightenment. Drallison.org is employed as an online venue for sharing observations on state-of-the-art surgical developments, accounts of patient achievements, and the rapidly transforming landscape of modern clinical care. This digital platform is more than a mere website—it acts as a knowledge base designed to support patients in making enlightened choices about their health. By presenting unequivocal, research-based material, Dr. Allison translates elaborate surgical methods and technological processes for public comprehension. His insistence on openness and informed instruction underscores his view that well-informed patients are more capable of engaging in their treatment decisions. Whether through detailed articles, FAQs, or personal anecdotes, he creates a dialogue that bridges the gap between medical expertise and public understanding.

The Junction of Clinical Surgery and Research Endeavors

Leading Progress with Rigorous Investigation
A prolific researcher, Dr. Allison has contributed to numerous studies that have advanced the field of surgery. His work is characterized by a rigorous scientific approach, meticulous methodology, and a commitment to uncovering insights that can be directly applied to clinical practice.

This research underpins his surgical expertise and lays the groundwork for future developments. His published studies have addressed critical issues ranging from the efficacy of new surgical instruments to the long-term outcomes of minimally invasive procedures. Within each initiative, he accentuates the role of evidence-informed practices, verifying that every innovation meets standards of patient safety and efficacy. This dedication to research underscores a broader commitment: to continuously push the boundaries of what is possible in surgical care.

Engagement with Prestigious Institutions

Synergy with peers is a key aspect of his work. Over the years, he has forged partnerships with leading academic institutions, research centers, and hospitals. These collaborations have allowed him to participate in multicenter trials and contribute to groundbreaking studies that have reshaped surgical protocols on a national—and even global—scale. The alliances he has formed have contributed to the inception of educational programs for young surgical talent. Realizing the critical impact of mentorship on medical development, Dr. Allison has committed extensive effort to fostering emerging surgical professionals. These educational initiatives not only promote excellence in surgical technique but also instill the values of compassion, curiosity, and continuous learning in aspiring medical professionals.

Directorship and Community Outreach

A Notable Authority in Medicine his clout surpasses the limits of the operating room. As a recognized leader in his field, he frequently speaks at national and international conferences, where his insights into surgical innovation and patient care have earned him accolades and respect. His speeches habitually attract significant audiences, all anxious to learn from his deep expertise and creative approach. These engagements are not mere lectures; they are interactive sessions where ideas are exchanged, challenges are discussed, and the future of surgery is mapped out collaboratively. has established him as a prominent speaker adept at linking scholarly research with real-world application.

Public Service and Charitable Works

A strong advocate for community health, Dr. Allison is deeply involved in outreach programs aimed at increasing access to quality surgical care. He understands that many communities face significant barriers to healthcare and is committed to working with local organizations to bridge this gap. Whether through free clinics, educational seminars, or fundraising initiatives, his philanthropic efforts are a testament to his belief in giving back to the community. A prominent scheme involved aligning with local health organizations to render free consultations and surgeries for populations in need. Such initiatives not only reveal his clinical expertise but also his firm dedication to serving society. Dr. Allison’s commitment to community service reinforces a broader vision: that excellence in healthcare is not solely measured by clinical outcomes but also by the positive impact one has on the lives of others.

The Beliefs Behind the Scalpel

An Ethical Approach to Modern Medicine

Central in Dr. Allison’s work is an array of core moral guidelines that influence every decision he makes.


In an era where rapid technological advancements can sometimes outpace ethical considerations, he remains steadfast in his commitment to integrity, transparency, and patient welfare. His decision-making process is grounded in a careful balance of innovation and caution, ensuring that every new technique or technology is thoroughly vetted before it is introduced into practice. This principled framework is woven into all aspects of his practice—from his approach to patient care to the execution of his research. Dr. Allison believes that trust is the foundation of the patient-doctor relationship, and this trust is built on clear communication, mutual respect, and a shared commitment to the best possible outcomes.

Balancing Tradition and Innovation

While being a pioneer in modern surgical methods, Dr. Allison remains deeply respectful of medicine’s longstanding traditions. His approach marries contemporary technological advances with the enduring traditions of surgical care. This balance is evident in his practice, where he seamlessly integrates modern techniques with established surgical methods. He often emphasizes that technology should enhance, not replace, the human touch in medicine. The personal rapport between a surgeon and a patient is indispensable to effective care, and despite the impressive appeal of innovative technology, Dr. Allison’s methods remain rooted in empathy and customized attention.

Patient Narratives: The Personal Dimension of Surgical Triumph

Life-Changing Journeys and Enduring Influence

A true measure of a surgeon’s impact is seen in the lives they improve. Over time, countless individuals have gained from Dr. Allison’s clinical mastery, with many telling stories of change and revived hope. These narratives are not just statistics or case studies—they are powerful testimonials to the profound impact of compassionate, skillful surgical care. Consider, as an example, a patient whose debilitating condition had a significant negative impact on their quality of life. Under Dr. Allison’s care, this individual not only underwent a successful surgery but also experienced a remarkable turnaround in their overall health and well-being. The journey—from initial diagnosis to postoperative recovery—was marked by a blend of clinical precision and heartfelt empathy, a combination that has become synonymous with Dr. Allison’s practice. These accounts underscore a principal message in his practice: the importance of hope and the revolutionary power of current medicine. They illustrate that behind every operation there is a personal story—one defined by resilience, trust, and the constant commitment of a dedicated healthcare provider.

Building a Legacy of Trust

For many, deciding on surgery is associated with high levels of anxiety and uncertainty. His strategy, noted for transparency and individualized attention, has generated a legacy of trust that spans beyond the operating room. His reputation as a surgeon who consistently prioritizes patient welfare has earned him not only professional accolades but also the heartfelt gratitude of those he has helped heal. This trust is enhanced by his rigorous commitment to follow-up care, ensuring that all patients are supported throughout the recovery journey. This comprehensive approach redefines the surgeon’s role—not simply as a technical specialist, but as a trusted mentor on the complex path to health and recovery.

Anticipating the Next Frontiers in Surgery

Anticipating Tomorrow’s Challenges

In a time of rapid medical evolution, Dr. Allison continues as a forward-thinking influencer, perpetually adapting to challenges and anticipating future trends in surgical care. One of the hallmarks of his vision is the belief that every challenge presents an opportunity to innovate and improve. Be it through integrating AI to refine diagnostic precision or by exploring advanced biomaterials for implants, his proactive method ensures his practice remains leading-edge. Within a constantly evolving field, Dr. Allison is undaunted by challenging established norms and charting new territories. His work often involves interdisciplinary collaboration, where insights from fields as diverse as engineering, computer science, and material science are brought together to tackle some of the most pressing challenges in modern surgery. This collaborative approach across disciplines not only catalyzes innovation but also confirms that the future of healthcare rests on the harmonious integration of multiple fields.

A Perspective on Inclusive, Easily Accessible Medical Care

Dr. Allison imagines a future where advanced surgical care is equally accessible to all, no matter the socioeconomic or geographic factors. He has been a vocal advocate for policies that support universal access to quality medical services and has worked tirelessly to bridge gaps in care for underserved populations. His vision is more than an ideal—it is founded on practical measures aimed at increasing community outreach, nurturing partnerships, and leveraging technological advances to expand modern surgical practices. By prioritizing both advanced technology and community initiatives, Dr. Allison is laying the groundwork for a future where excellent healthcare is a universal right.

The Personal Side: A Life Beyond the Scalpel

Balancing Professional Dedication with Personal Passions

Behind the clinical expertise and the accolades lies a man who values balance—both in his professional and personal life. Colleagues and patients alike have noted that Dr. Allison’s approachability and genuine warmth are as integral to his success as his surgical skill. Away from the pressures of surgery and research, he enjoys periods of quiet thought, family time, and community engagement. This balance is the result of a purposeful, conscious effort to maintain personal well-being despite the intense demands of a surgical career. Dr. Allison has often spoken about the importance of mental and emotional health, not just for patients but also for medical professionals. His commitment to work-life balance finds strong resonance in a field notorious for lengthy hours and intense stress.

Cultivating a Legacy of Mentorship

An enduring aspect of his legacy is his dedicated mentorship of young surgical professionals. He views mentorship not only as a professional responsibility but as a personal passion. By sharing his experiences, insights, and even his mistakes, he creates a learning environment where the next generation of medical professionals can thrive. His guidance covers more than mere technical training, offering lessons in ethical conduct, the value of empathy, and the necessity of continual education. In many ways, the ripple effects of his guidance can be seen in the careers of those he has mentored—each carrying forward the torch of excellence that he so passionately upholds.

Reflecting on a Career of Impact

Achievements and Commendations

Throughout his distinguished career, Dr. Daniel C. Allison has amassed a litany of accolades that reflect both his technical prowess and his unwavering dedication to patient care. Beginning with prestigious awards for surgical innovation to acknowledgments by professional organizations, every honor is a testament to a career of this content persistent excellence. The true testament to his success is not encapsulated in awards or titles but in the impact he has made on the lives of others. Every successful surgery, every patient who experiences improved quality of life, and every young professional inspired by his example speaks volumes about the enduring impact of his work. His narrative reflects ongoing progress, unyielding commitment, and a strong passion for enhancing lives through the confluence of art and science in surgery.


A Relentless Quest for Learning

Notwithstanding decades of experience, Dr. Allison still embraces his role as a student of medicine—a professional who understands that in the swiftly evolving landscape of healthcare, education is an eternal pursuit His ongoing participation in research, continued education, and active involvement in professional forums is a testament to his belief that excellence is not a destination but a journey. This commitment to perpetual learning not only benefits his practice but also sets a high standard for colleagues and future generations of surgeons.

Concluding Thoughts: The Enduring Influence of Dr. Allison

In an age characterized by rapid medical and technological progress, the tale of Dr. Daniel C. Allison highlights that the true essence of medicine is not just about the latest innovations but the commitment to empathetic, patient-focused care His evolution—from an inquisitive young scholar to a revered leader in modern surgery—demonstrates how passion, perseverance, and innovation can merge to change lives His work endures as an inspiration for both members of the medical community and patients who confidently entrust their well-being to him His ability to unite the art of surgery with the discipline of research, to integrate innovative technologies with perpetual values, and to lead with both expertise and heartfelt compassion has defined his legacy as one of the most influential leaders in modern medicine For anyone interested in understanding the essence of modern surgical leadership, the career of Dr. Daniel C. Allison serves as an illuminating case study His continuous dedication to excellence, his promotion of accessible, compassionate healthcare, and his unremitting pursuit of innovation remind us that genuine leadership in medicine is defined not merely by awards but by the enduring, positive impact one makes on the world As Dr. Allison continues to navigate the ever-changing landscape of healthcare, his story serves as a powerful narrative of what it means to combine technical mastery with deep humanity. His enduring legacy is established not merely by the successful outcomes of countless procedures but also by the hope he fosters click to read more in every patient and the motivation he gives to young surgeons

A Lasting Impression

Dr. Daniel C. Allison’s work in surgery goes well beyond the operating room, portraying a full vision of modern healthcare as an amalgamation of technology, research, and patient-centered compassion His story is one of transformation, resilience, and a continuous quest for knowledge that has helped shape the future of surgical practice. Through seminal research, novel surgical strategies, or his resolute commitment to patient care, Dr. Allison remains an enduring beacon in an ever-evolving domain In reflecting on his career, one is reminded of the power of dedication and the importance of staying true to one’s core values in the face of rapid change. His contributions not only motivate his peers but also chart a course for future medical leaders who wish to create meaningful change The enduring effects of his work are felt in every corner of surgical care, underscoring the belief that true excellence in healthcare results when technical mastery is blended with genuine compassion

Looking Forward: The Evolution of a Legacy

As we look to the future of medicine, the principles that have guided Dr. Allison’s career—innovation, patient-centered care, ethical practice, and continuous learning—remain as relevant as ever. In an industry that is constantly evolving, these timeless values will continue to be the cornerstone of quality healthcare. Dr. Allison’s sustained work serves as a reminder that the future of surgery hinges not only on technological strides but also on the improvement of the human condition through empathetic, thoughtful care For patients, his work provides a comforting assurance: that click here now they are cared for by a surgeon who not only excels in the latest techniques but also comprehends the gravity of the trust bestowed upon him For those entering the medical profession, his career stands as a striking example of how dedication, heartfelt empathy, and a continuous quest for knowledge can lead to transformative change As we commemorate the career of Dr. Daniel C. Allison, we appreciate not only his accolades and milestones but also the transformative effect his work has had on countless individuals and the medical community at large His legacy is evidence of what can be accomplished when excellence is not just a professional goal but a lifelong commitment that directs the future course of modern surgery

Final Reflections

In the final analysis, Dr. Daniel C. Allison, MD, FACS embodies the spirit of modern medicine—a blend of technical excellence, innovative thinking, and heartfelt compassion. His career, underscored by continuous learning and deep patient care commitment, serves as a long-lasting reminder of the power of medical transformation With the continual evolution of healthcare, his legacy will certainly guide future generations toward a world where high-quality care is innovative, accessible, and profoundly compassionate For those seeking to understand his work and philosophy in greater depth, drallison.org provides access to his clinical insights, research projects, and the continuous narrative of a surgeon dedicated to both advancing surgical science and nurturing patient health Dr. Daniel C. Allison’s journey is a testament to the belief that true success in medicine is not solely measured by technical skill or accolades, but by the enduring impact one has on the lives of others. His narrative endures to inspire, educate, and empower, serving as a reminder that the foundation of every revolutionary innovation is an unwavering dedication to healing