Edited by Todd H. Baron, MD, Mayo Clinic, Rochester, MN, USA; Richard Kozarek, MD, Chief of Gastroenterology, Section of Gastroenterology, Virginia Mason Medical Center, Seattle, WA, USA; and David Leslie Carr-Locke, MD, FACG, FRCP, Director of Endoscopy, Division of Gastroenterology, Brigham and Women's Hospital, Boston, MA, USA |