title: Letter: Removal of radiopaque foreign bodies from the upper G.I. tract using a catheter.
mesh_terms: D000328:Adult; D000768:Anesthesia, General; D000772:Anesthesia, Local; D002404:Catheterization / Q000009:adverse effects / Q000379:methods; D002648:Child; D004947:Esophagus / Q000293:injuries*; D005547:Foreign Bodies / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D011859:Radiography