Department of Surgery;
Tsuru Municipal Hospital;
Tsuru;
Japan;
Gastrointestinal & Breast;
Endocrine Surgery;
Faculty of Medicine;
University of Yamanashi;
Yamanashi;
Japan;
Laparoscopic; Choledochoduodenostomy; Biliary; Alleviation; Endoscopic; Management; Difficult; Choledocholithiasis;