title: Application of the Dormia catheter to the extraction of residual biliary tract calculi.
mesh_terms: D002404:Catheterization / Q000295:instrumentation*; D002769:Cholelithiasis / Q000628:therapy*; D042882:Gallstones / Q000628:therapy*; D006500:Hepatic Duct, Common; D006801:Humans; D008722:Methods