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We evaluated the usefulness of peroral cholangioscopy (POCS) for residual bile duct stones in patients with complete bile duct clearance confirmed by balloon‐occluded cholangiography. A total of 108 patients with common bile duct stones who underwent POCS after extraction of stones via endoscopic sphincterotomy, resulting in complete bile duct extraction confirmed by balloon‐occluded cholangiography,...
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