Author Video (VIDEO) American College of Surgeons This video is under embargo. Please login to access this video. Caption Ryan P. Merkow, MD, FACS, assistant professor of surgery, Northwestern Medicine, and Ruojia Debbie Li, MD, MS, research fellow, Northwestern University Feinberg School of Medicine explain the findings. Credit American College of Surgeons Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.