title: Radioimmunoassay--a new approach to determination of levels of protein and steroid hormones in body fluids.
mesh_terms: D000818:Animals; D000937:Antigen-Antibody Reactions; D001798:Blood Proteins / Q000032:analysis*; D006728:Hormones / Q000097:blood; D006801:Humans; D007106:Immune Sera; D008722:Methods; D010455:Peptides / Q000097:blood; D011485:Protein Binding; D011863:Radioimmunoassay; D013256:Steroids / Q000097:blood*
chemical_list: D001798:Blood Proteins; D006728:Hormones; D007106:Immune Sera; D010455:Peptides; D013256:Steroids