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Biography: Dr. Winchell is an internationally renowned expert in care of the critically injured and the development, design, and operation of trauma systems. He is the G. Thomas Shires II Professor of Surgery, Professor of Medical Ethics in Medicine, and Chief of the Division of Trauma, Burns, Acute and Critical Care at Weill Cornell Medicine. He heads one of the leading Level 1 trauma centers in New York City and oversees the internationally recognized William Randolph Hearst Burn Center.Dr. Winchell received his undergraduate degree at the California Institute of Technology, his M.D. from Yale University, and did his internship, General Surgery residency, and Trauma and Critical Care Fellowship at the University of California, San Diego. He is board certified in general surgery, with added qualifications in surgical critical care. He served on the faculty at UCSD as Associate Professor of Clinical Surgery until 1999, and prior to joining Weill Cornell, he was a Visiting Professor of Surgery at the University of Texas Health Science Center in Houston and Chief of Trauma at Memorial Hermann-Texas Medical Center.Dr. Winchell is a fellow of the American College of Surgeons, currently serving as Governor for the Manhattan Council Chapter. He served on the American College of Surgeons Committee on Trauma for over 20 years, in various roles including Chair of the Trauma Systems Evaluation and Planning Committee, member of the Executive Committee, and Special Consultant for International Quality Programs. Dr Winchell has led the development and evolution of trauma systems throughout the world, including his seminal work in the Committee on Trauma's Trauma System Consultation Program, and work with the WHO Global Alliance for the Care of the Injured.Dr. Winchell is the author of more than 100 scientific papers and book chapters, and has given over 200 regional, national, and international presentations. He is an associate editor of the Journal of Trauma and Acute Care Surgery, a section editor for the European Journal of Trauma, and reviewer for several other journals including Trauma and Acute Care Surgery Open, the Archives of Surgery, and the World Journal of Surgery. He is a fellow or member of the American Surgical Association, the American Association for the Surgery of Trauma, the American Burn Association, the New England Surgical Society, the International Society for Surgery, the International the Association for Trauma Surgery and Intensive Care, the Western Trauma Association, and the Society of Critical Care Medicine as well as other national and regional scholarly societies.

Biography: Cassandra Villegas, MD MPH is an Attending Surgeon at Weill Cornell Medical Center in the Division of Trauma, Burns, Critical, and Acute Care Surgery. She received her B.S. in Biological Sciences from Stanford University, where she was a President' Scholar and received the Teaching Excellence award. She remained at Stanford University as an instructor and doing neuroscience research before joining Teach for America to teach high school science in Los Angeles Unified School District for five years. There, she won the Most Inspirational Teacher Award before leaving education to attend Johns Hopkins School of Medicine. As a medical student, she completed her MPH at Columbia University Mailman School of Public Health, focusing on data outcomes research while diversifying her medical training at Guy's, King's, and St. Thomas's Hospital in London, England as well as the Royal College of Surgeons in Dublin, Ireland.She continued her outcomes research in trauma and health disparities before starting her general surgery residency at the University of Arizona. While there, she took 1st Place in the American College of Surgeons Resident Paper Competition and earned the American Association for the Surgery Resident Scholarship for her work her in trauma outcomes. She received Resident Educator of the Year twice, and was Awarded Resident of the Year at the Southern Arizona Veteran's Hospital. At the conclusion of her residency, she was awarded the Charles Putnam Chief Resident Teaching Award.Dr. Villegas then completed her Surgical Critical Care and Acute Care Surgery Fellowships at New York-Presbyterian Weill Cornell Medical College in New York, where she now serves as faculty and continues her research interest in trauma, emergency surgery, and global health surgery. She is a member of the American College of Surgeons, the Easter Association for the Surgery of Trauma, and the Surgical Outcomes Society.

Biography: Dina Podolsky, MD, is an Assistant Professor of Surgery at Columbia University Irving Medical Center. She is a board-certified general surgeon who graduated with honors from Rutgers University, where she also received her medical degree, and completed a residency in general surgery at Montefiore Medical Center. Dr. Podolsky then completed fellowship training in complex abdominal wall reconstruction and robotic surgery at Columbia University Irving Medical Center, where she worked closely with one of the world's leading hernia surgeons, Dr. Novitsky. She is a member of several national organizations, including the Americas Hernia Society and the Society of American Gastrointestinal and Endoscopic Surgeons. Dr. Podolsky has received numerous awards for her training and teaching, including the Leo M. Davidoff Award for Outstanding Teaching and the Golden Apple Teaching Award. Dr. Podolsky specializes in all aspects of hernia surgery, including inguinal, ventral, and complex abdominal wall reconstruction, employing minimally invasive techniques with laparoscopic and robotic surgery. She has presented research at major professional associations and continues to be active in research, publishing both academic research and textbook chapters. Dr. Podolsky currently sees patients in midtown Manhattan and Washington Heights.

Biography: Dr. S. Sunghyun Yoon is the Chief of the Division of Surgical Oncology and Vice-Chair of Surgical Oncology Research and Education in the Department of Surgery at Columbia University Irving Medical Center (CUIMC). Dr. Yoon is a national and international expert in the treatment of patients with sarcomas and other soft tissue tumors, gastric (stomach) and gastroesophageal cancers, gastrointestinal stromal tumors (GISTs), and melanoma. He also has over 18 years of experience in the treatment of other gastrointestinal and abdominal tumors, hepatobiliary tumors, neuroendocrine/adrenal tumors, lymphomas, and spleen tumors. He has been the principal investigator of several clinical trials examining novel treatment strategies and given numerous invited national and international lectures in relation to these cancers. Several of these trials have investigated the treatment of sarcomas, especially abdominal/retroperitoneal sarcomas, with advanced radiation techniques such as proton beam radiation and aggressive surgical resection to minimize local recurrence. Read More About These Treatments: https://columbiasurgery.org/conditions-and-treatments/retroperitoneal-sarcomas-and-pelvic-sarcomas Dr. Yoon was an early advocate for minimally invasive robotic surgery and has performed over 300 robotic procedures including robotic gastrectomies (stomach removal). He has one of the world's largest experiences in performing prophylactic total gastrectomies for patients with hereditary diffuse gastric cancer (HDGC syndrome) secondary to germline CDH1 mutation. He pioneered a technique for connection of the small bowel to the esophagus after total gastrectomy that is used by former surgical trainees and colleagues throughout the country due to its extremely low leakage rate. Dr. Yoon graduated from Harvard University and received his M.D. from the University of California at San Diego. He completed his residency in general surgery at Massachusetts General Hospital and his fellowship in surgical oncology at the Memorial Sloan-Kettering Cancer Center. He was an Associate Professor of Surgery at Massachusetts General Hospital and Harvard Medical School before joining the staff at Memorial Sloan-Kettering Cancer Center in 2012. Dr. Yoon was an Attending Surgeon in the Division of Gastric and Mixed Tumors at Memorial Sloan Kettering Cancer Center and a Professor of Surgery at Weill Cornell Medical College before joining CUIMC in 2021. Dr. Yoon's main research interests are in cancer stem cells and targeted biological agents in combination with chemotherapy and radiation therapy. His laboratory has been funded by the National Institutes of Health/National Cancer Institute for 18 years and strives to translate new research discoveries into the clinic. Dr. Yoon is also part of multi-institution research groups funded by Stand Up To Cancer and the DeGregorio Family Foundation to discover early diagnostics and new therapies for gastric cancer. His clinical and research efforts have led to over 150 original research articles, book chapters, and reviews. For a complete list of publications, please visit NCBI.

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