title: A radioimmunoassay for equilin in equine pregnancy plasma.
mesh_terms: D015068:17-Ketosteroids / Q000097:blood*; D000818:Animals; D003429:Cross Reactions; D004857:Equilin / Q000097:blood* / Q000276:immunology; D004970:Estrone / Q000097:blood; D005260:Female; D005865:Gestational Age; D006736:Horses; D011247:Pregnancy; D011270:Pregnancy, Animal; D011863:Radioimmunoassay
chemical_list: D015068:17-Ketosteroids; D004857:Equilin; D004970:Estrone