Ahnen Dennis J, Patel Swati G
University of Colorado School of Medicine and Gastroenterology of the Rockies, Aurora, Colorado.
Department of Medicine, University of Colorado School of Medicine, Rocky Mountain Regional Veterans Affairs Hospital, Aurora, Colorado.
Gastroenterology. 2019 Dec;157(6):1691-1692. doi: 10.1053/j.gastro.2019.04.056. Epub 2019 Sep 19.