title: Reactions to contrast media and steroid pretreatment.
mesh_terms: D003287:Contrast Media / Q000009:adverse effects*; D006801:Humans; D009994:Osmolar Concentration; D012307:Risk Factors; D013256:Steroids / Q000008:administration & dosage / Q000627:therapeutic use
chemical_list: D003287:Contrast Media; D013256:Steroids