Institution: | (1) Division of Gastroenterology and Hepatology, Veterans Affairs Medical Center, University of Kansas School of Medicine, 4801 E. Linwood Blvd, Kansas City, MO 64128-2295, USA;(2) Division of Gastroenterology and Hepatology, Department of Pathology, Veterans Affairs Medical Center, University of Kansas School of Medicine, 4801 E. Linwood Blvd, Kansas City, MO 64128-2295, USA |