THE JAPANESE ASSOCIATION FOR MOLECULAR TARGET THERAPY OF CANCER
, JAPAN SURGICAL ASSOCIATION
, JAPAN SOCIETY OF CLINICAL ONCOLOGY
, THE JAPANESE CANCER ASSOCIATION
, JAPANESE SOCIETY OF GASTROENTEROLOGY
, JAPAN BILIARY ASSOCIATION
, JAPAN PANCREAS SOCIETY
, JAPANESE SOCIETY OF HEPATO-BILIARY-PANCREATIC SURGERY
, 日本消化器外科学会(2004/04-)
, 日本外科学会(1998/04-)