Faculty of Medicine, National Yang-Ming University School of Medicine, Taipei (C.-Y.C, S.-D.L.), and Division of Gastroenterology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan (C.-Y.C, S.-D.L.); Department of Anatomy, Sapporo Medical University School of Medicine, Sapporo, Hokkaido, Japan (M.F.); and Department of Psychosomatic Internal Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan (A.A., A.I.)

Faculty of Medicine, National Yang-Ming University School of Medicine, Taipei (C.-Y.C, S.-D.L.), and Division of Gastroenterology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan (C.-Y.C, S.-D.L.); Department of Anatomy, Sapporo Medical University School of Medicine, Sapporo, Hokkaido, Japan (M.F.); and Department of Psychosomatic Internal Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan (A.A., A.I.)

Faculty of Medicine, National Yang-Ming University School of Medicine, Taipei (C.-Y.C, S.-D.L.), and Division of Gastroenterology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan (C.-Y.C, S.-D.L.); Department of Anatomy, Sapporo Medical University School of Medicine, Sapporo, Hokkaido, Japan (M.F.); and Department of Psychosomatic Internal Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan (A.A., A.I.)

Faculty of Medicine, National Yang-Ming University School of Medicine, Taipei (C.-Y.C, S.-D.L.), and Division of Gastroenterology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan (C.-Y.C, S.-D.L.); Department of Anatomy, Sapporo Medical University School of Medicine, Sapporo, Hokkaido, Japan (M.F.); and Department of Psychosomatic Internal Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan (A.A., A.I.)

Faculty of Medicine, National Yang-Ming University School of Medicine, Taipei (C.-Y.C, S.-D.L.), and Division of Gastroenterology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan (C.-Y.C, S.-D.L.); Department of Anatomy, Sapporo Medical University School of Medicine, Sapporo, Hokkaido, Japan (M.F.); and Department of Psychosomatic Internal Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan (A.A., A.I.)