Institution: | a Department of Gastroenterology and Hepatology, Osaka University, Graduate School of Medicine, Suita, Osaka 565-0871, Japan b Department of Metabolic Medicine, Osaka University, Graduate School of Medicine, Suita, Osaka 565-0871, Japan c Hyogo Prefectural Nishinomiya Hospital, Nishinomiya, Hyogo, Japan d Department of General Medicine, Hiroshima University Hospital, Hiroshima, Japan |