Vajravelu Ravy K, Mehta Shivan J, Lewis James D
Division of Gastroenterology and Hepatology, Department of Medicine and, Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
Division of Gastroenterology and Hepatology, Department of Medicine and, Center for Clinical Epidemiology and Biostatistics and, Abramson Cancer Center, Perelman School of Medicine and, Penn Medicine Center for Health Care Innovation, University of Pennsylvania, Philadelphia, Pennsylvania.
Gastroenterology. 2021 Mar;160(4):993-998. doi: 10.1053/j.gastro.2020.11.058. Epub 2021 Jan 12.