Institution: | 1. Department of Gastroenterology, Aichi Medical University, Aichi, Japan;2. Department of Gastroenterology, Gifu Prefectural Tajimi Hospital, Gifu, Japan;3. Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Aichi, Japan;4. Department of Gastroenterology, Toyokawa City Hospital, Aichi, Japan |