Affiliation: | (1) Department of Surgery, Sakai Municipal Hospital, Osaka, Japan;(2) Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan;(3) Department of Surgery, Osaka National Hospital, Osaka, Japan;(4) Department of Surgery, Toyonaka Municipal Hospital, Toyonaka, Japan;(5) Department of Surgery, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan; |