Electrohydraulic lithotripsy for hepatolithiasis in a stenotic intrahepatic bile duct after Roux-en-Y hepaticojejunostomy - Nakamura, Kenji; Okamoto, Takeshi; Katayama, Tadashi; Takigawa, Yutaka; Fukuda, Katsuyuki; Kishikawa, Hiroshi; Nishida, Jiro (Endoscopy, 2021)