title: General principles of radioimmunoassay.
mesh_terms: D000941:Antigens; D001345:Autoradiography; D005492:Folic Acid / Q000032:analysis; D006728:Hormones / Q000032:analysis; D006801:Humans; D007456:Iodine Isotopes; D008722:Methods; D010455:Peptides; D011863:Radioimmunoassay; D014805:Vitamin B 12 / Q000032:analysis
chemical_list: D000941:Antigens; D006728:Hormones; D007456:Iodine Isotopes; D010455:Peptides; D005492:Folic Acid; D014805:Vitamin B 12