title: A new principle of thyroxine (T4) and triiodothyronine (T3) radioimmunoassay in unextracted serum using antisera with binding optima at extreme pH ranges.
mesh_terms: D000818:Animals; D000936:Antigen-Antibody Complex; D002417:Cattle; D003429:Cross Reactions; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007106:Immune Sera; D011817:Rabbits / Q000276:immunology; D011863:Radioimmunoassay / Q000379:methods; D013954:Thyroglobulin; D013974:Thyroxine / Q000097:blood*; D014284:Triiodothyronine / Q000097:blood*
chemical_list: D000936:Antigen-Antibody Complex; D007106:Immune Sera; D014284:Triiodothyronine; D013954:Thyroglobulin; D013974:Thyroxine