title: Non-surgical removal of retained biliary calculi.
mesh_terms: D002404:Catheterization; D002758:Cholangiography / Q000295:instrumentation; D002769:Cholelithiasis / Q000601:surgery / Q000628:therapy*; D003287:Contrast Media; D006801:Humans; D008722:Methods; D011183:Postoperative Complications; D011187:Posture; D013997:Time Factors
chemical_list: D003287:Contrast Media