1. Department of Internal Medicine, Hackensack Meridian Health Ocean Medical Center, Brick Township, NJ, USA
2. Department of Gastroenterology and Hepatology, Mercy Fitzgerald Hospital, Darby, PA, USA
3. Department of Gastroenterology and Hepatology, Corporal Michael J Crescenz VA Medical Center, Philadelphia, PA, USA
4. Perelman School of Medicine, University of Pennsylvania, Pennsylvania, PA, USA