Overtube-guided electrohydraulic lithotripsy through digital cholangioscopy for difficult biliary stones in a postoperative patient: challenging points with salvage techniques by Hassan Atalla, MSc, Arata Sakai, MD, PhD, Hideyuki Shiomi, MD, PhD, Shohei Abe, MD, Yuzo Kodama, MD, PhD

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Combined bridging and antegrade stent placement during transmural treatment for malignant hilar biliary obstruction in a patient with surgically altered anatomy by Hassan Atalla, MSc, Hideyuki Shiomi, MD, PhD, Arata Sakai, MD, PhD, Atsuhiro Masuda, MD, PhD, Yuzo Kodama, MD, PhD

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