About the Author: Elijah Dixon MD, BSc, MSc (Epi), FRCSC, FACS
Associate Professor of Surgery, Oncology, and Community Health Sciences, Service Chief, Hepatobiliary and Pancreatic Surgery, University of Calgary, Foothills Medical Centre, Division of General Surgery, Calgary, Alberta, Canada
Charles M. Vollmer Jr., MD, FACS
Associate Professor of Surgery, Hospital of the University of Pennsylvania, University of Pennsylvania, Perelman School of Medicine, Department of Surgery, Philadelphia, PA, USA
Gary R. May, MD, FRCPC, FASGE
Acting Head, Associate Professor of Medicine, St. Michael's Hospital, Division of Gastroenterology, University of Toronto, Toronto, Ontario, Canada