Percutaneous removal of residual biliary tract stones. Problems encountered in a series of 44 cases.
D002404:Catheterization / Q000009:adverse effects / Q000379:methods*; D002758:Cholangiography; D002763:Cholecystectomy; D042882:Gallstones / Q000601:surgery*; D006500:Hepatic Duct, Common; D006801:Humans