Poster 103
Biliary 16

[P103-3] History of upper abdominal surgery and preoperative endoscopic choledocholithotomy are risk factors for conversion to open cholecystectomy

^○Mitsugi Shimoda, Tsunehiko Maruyama, Kiyotaka Nishida, Jiro Shimazaki, Shuji Suzuki (Department of Gastroenterological Surgery, Tokyo Medical University, Ibaraki Medical Center.)