1 Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Shogoin, Sakyo-ku, Kyoto, Japan; Department of Gastroenterology and Hepatology, Shiga General Hospital, Moriyama, Shiga, Japan. Electronic address: shinnosuke_n@kuhp.kyoto-u.ac.jp.
2 Department of Gastroenterology and Hepatology, Shiga General Hospital, Moriyama, Shiga, Japan.
3 Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Shogoin, Sakyo-ku, Kyoto, Japan.