[P22] 胆石1

[P-104] Endoscopic treatment of common bile duct stones in elderly patients

^○Ryuichi Yamamoto¹, Ko Nishikawa², Tetsuro Fujita¹, Takeshi Otsuka¹, Masatomo Takahashi¹, Katsuya Chinen¹, Yasuyo Osafune¹, Shingo Kato¹, Sumiko Nagoshi¹, Koji Yakabi¹ (1.Dept. of Gastroenterology and Hepatology,Saitama Medical Center,Saitama Medical University, Saitama,Japan, 2.Ageo Central General Hospital, Department of Gastroenterology)