title: Non-operative removal of retained bile duct stones--the removal of seventy-one stones in thirty-one patients.
mesh_terms: D000328:Adult; D000368:Aged; D002404:Catheterization; D002769:Cholelithiasis / Q000628:therapy*; D005260:Female; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged