Percutaneous transhepatic digital single-operator cholangioscopy-guided laser lithotripsy in treating difficult intrahepatic duct stone in surgically altered anatomy
1 Siriraj GI Endoscopy Center, Division of Gastroenterology, Department of Internal Medicine, Faculty of Medicine, Siriraj hospital, Mahidol University, Bangkok, Thailand.
2 Division of Gastroenterology and Hepatology, Department of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.