title: Endoscopic retrograde cholangiography using barium sulfate: an alternative approach to the contrast media-reactive patient.
mesh_terms: D001466:Barium Sulfate; D002758:Cholangiography / Q000379:methods*; D003287:Contrast Media / Q000009:adverse effects; D004342:Drug Hypersensitivity; D004724:Endoscopy; D006801:Humans; D008297:Male; D008875:Middle Aged
chemical_list: D003287:Contrast Media; D001466:Barium Sulfate