Department of Gastroenterology and Metabolism University of Occupational and Environmental Health;
School of Medicine;
Kitakyuushu;
Japan;
Department of Surgery Ⅱ Kumamoto University Medical School;
Japan;
Critical Care and Emergency Center Yokohama City University School of Medicine;
Japan;
Ohara Medical Center Hospital Japan;
Department of Medicine Gastroenterology;
Shinshu University School of Medicine;
Japan;
Department of Internal Medicine Tokyo Metropolitan Komagome Hospital;
Japan;
Department of Surgery National Hospital Organization Sendai Medical Center;
Japan;
Department of Emergency and Critical Care Medicine Nagoya University Graduate School of Medicine;
Japan;
Department of Internal Medicine National Center for Geriatrics and Gerontology;
Japan;
Department of Medicine and Bioregulatory Science Graduate School of Medical Sciences;
Kyushu University;
Japan;
Department of Internal Medicine Fujita Health University;
Second Teaching Hospital;
Japan;
Division of Gastroenterology Tohoku University School of Medicine;
Japan;
Second Department of Internal Medicine Showa University School of Medicine;
Japan;
Department of Gastroenterology and Hepatology Kyoto Prefectural University of Medicine;
Japan;
The Department of Medicine and Clinical Oncology Graduate School of Medicine Chiba University;
Japan;
Third Department of Internal Medicine Division of Gastroenterology and Hepatology;
Kansai Medical University;
Japan;
Department of Gastroenterological Surgery Kobe University Graduate School of Medical Sciences;
Japan;
Department of Medical Oncology Kanazawa Medical University;
Japan;
Department of Surgery Kinki University School of Medicine;
Osaka;
Japan;