title: Radioimmunoassay.
mesh_terms: D001667:Binding, Competitive; D002301:Cardiac Glycosides / Q000032:analysis; D006728:Hormones / Q000032:analysis; D009294:Narcotics / Q000032:analysis; D011506:Proteins / Q000032:analysis; D011863:Radioimmunoassay; D014815:Vitamins / Q000032:analysis
chemical_list: D002301:Cardiac Glycosides; D006728:Hormones; D009294:Narcotics; D011506:Proteins; D014815:Vitamins