title: Comparison of barium sulphate and dionosil as contrast media for bronchography.
mesh_terms: D001466:Barium Sulfate; D001995:Bronchography / Q000379:methods*; D006801:Humans; D007469:Iodopyridones; D008657:Metabolic Clearance Rate; D011440:Propyliodone
chemical_list: D007469:Iodopyridones; D001466:Barium Sulfate; D011440:Propyliodone