Dr. Charles Vollmer is an internationally renowned Professor of Surgery, Division Chief of Gastrointestinal Surgery, and Director of Pancreatic Surgery at the University of Pennsylvania. He specializes in Pancreaticobiliary and other complex gastrointestinal surgery with a research focus in clinical outcomes assessment in high-acuity surgery – especially pancreatic fistula. He has authored over 200 manuscripts, 40 book chapters, and 3 books focusing on pancreaticobiliary diseases. He is active in multiple national and international surgical societies where he has served in various leadership positions including Membership Chairman, Program Chairman, Treasurer, President-Elect, and President of the AHPBA. He also currently sits on the Executive Committee of the IHPBA and was its Scientific Program Chair for the 2016 World Congress in Sao Paulo, Brazil. He is a reviewer for numerous surgical specialty journals and is on the Editorial Boards of Annals of Surgery, British Journal of Surgery, Annals of Surgical Oncology, Surgery, HPB, the Journal of Gastrointestinal Surgery. He is a member of the American Surgical Society, Society of Clinical Surgeons, and the Surgical Biology Club II. In 2008, he was honored to be the Josef Fischer Traveling Fellow in Academic Surgery for the Society of Surgery of the Alimentary Tract (SSAT).