Editor-in-Chief: Nicholas J. Talley, MD, PhD, Chair, Department of Internal Medicine, Mayo Clinic College of Medicine, Jacksonville, Florida, USAAssociate editors:Sunanda V. Kane, MD, MSPH, Associate Professor of Medicine, Miles and Shirley Fitterman Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine, Rochester, MN, USAMichael B. Wallace, MD, MPH, Associate Professor of Medicine, Gastroenterology and Hepatology, Mayo Clinic, Jacksonville, FL, USA