1Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan.
2Research and Development Division, ARKRAY, Inc., Yousuien-nai, 59 Gansuin-cho, Kamigyo-ku, Kyoto 606-8507, Japan.
3Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka 589-8511, Japan.
4Department of Gastroenterology and Hepatology, Japanese Red Cross Osaka Hospital, Osaka 543-8555, Japan.
5Department of Pharmacology, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan.
6Department of Gastroenterology and Hepatology, Japanese Red Cross Wakayama Medical Center, Wakayama 640-8558, Japan.
7Department of Gastroenterology and Hepatology, Kitano Hospital, Tazuke Kofukai Medical Research Institute, Osaka 530-8480, Japan.
8Department of Gastroenterology, Tenri Hospital, Nara 632-0032, Japan.
9Department of Gastroenterology and Hepatology, Shiga General Hospital, Moriyama 524-8524, Japan.
10Department of Gastroenterology, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki 661-0892, Japan.
11Department of Gastroenterology and Hepatology, Kyoto Katsura Hospital, Kyoto 615-8256, Japan.
12Department of Gastroenterology and Hepatology, Kobe City Nishi-Kobe Medical Center, Kobe 651-2273, Japan.
13Division of Gastroenterology, Shinko Hospital, Kobe 651-0072, Japan.
14Department of Gastroenterology and Hepatology, Takatsuki Red Cross Hospital, Takatsuki 569-1096, Japan.
15Department of Gastroenterology and Hepatology, Japanese Red Cross Otsu Hospital, Otsu 520-0046, Japan.
16Division of Hepato-Biliary-Pancreatic Surgery and Transplantation, Department of Surgery, Kyoto University Graduate School of Medicine, Kyoto 606-8501, Japan.