Penulis: Gary Wu

About the Editors Timothy C. Wang, MD, Chief, Division of Digestive and Liver Diseases; Silberberg Professor of Medicine, Department of Medicine and Irving Cancer Research Center, Columbia University Medical Center, New York, NY, USA. Michael Camilleri, MD, Atherton and Winifred W. Bean Professor of Medicine, Pharmacology and Physiology, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA. Associate Editors Benjamin Lebwohl, MD, Associate Professor of Medicine and Epidemiology, Columbia University Medical Center, New York, NY, USA. Anna Lok, MD, Alice Lohrman Andrews Research Professor of Hepatology, Division of Gastroenterology and Hepatology, University of Michigan, Ann Arbor, MI, USA. William J. Sandborn, MD, Professor of Medicine, University of California San Diego, CA, USA. Kenneth K. Wang, MD, Russell G. and Kathleen M. Van Cleve Professor of Medicine, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA. Gary D. Wu, MD, Ferdinand G. Weisbrod Professor of Medicine, Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.