title: Radio immunoassay employing gel filtration.
mesh_terms: D000804:Angiotensin II; D000937:Antigen-Antibody Reactions; D002850:Chromatography, Gel; D066298:In Vitro Techniques; D007456:Iodine Isotopes; D012260:Ribonucleases
chemical_list: D007456:Iodine Isotopes; D000804:Angiotensin II; D012260:Ribonucleases