title: [Studies on a sensitive RIA for TSH--applicability of 200 microliters serum sample].
mesh_terms: D000818:Animals; D004285:Dogs; D006736:Horses; D006801:Humans; D011863:Radioimmunoassay / Q000379:methods*; D013972:Thyrotropin / Q000097:blood*
chemical_list: D013972:Thyrotropin