日本肥満症治療学会
, The Japan esophaeal society
, Japanese Hernia society
, Society of American Gastrointestinal and Endoscopic Surgeons
, Japanese Gastric Cancer Association
, The Japan. Society for Endoscopic Surgery
, The Japanese Society of Gastroenterology
, Japan Society of Clinical Oncology
, The Japanese Society of Gastroenterological Surgery
, Japan Surgical Association
, Japan Gastroenterological Endoscopy Society
, Japan surgical society