Eur J Gastroenterol Hepatol 2021 Jan 6;Publish Ahead of Print. Epub 2021 Jan 6.
Department of Medicine, West Virginia University Health Sciences Center Charleston Division, Charleston, West Virginia Department of Medicine, UMass Medical Center, Springfield, Massachusetts Department of Medicine, The Toledo Hospital, Toledo, Ohio Department of Medicine, Maimonides Medical Center, New York, USA Department of Medicine, Dow University of Health Sciences, Karachi, Pakistan Division of Gastroenterology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts Division of Gastroenterology, Department of Medicine, University of Alabama at Birmingham (UAB), Birmingham, Alabama Division of Gastroenterology and Hepatology, Department of Medicine, West Virginia University, Morgantown, West Virginia, USA.