title: Oestrogens in the pregnant guinea-pig.
mesh_terms: D015068:17-Ketosteroids / Q000378:metabolism; D000736:Androstenes / Q000378:metabolism; D000818:Animals; D004967:Estrogens / Q000097:blood*; D005260:Female; D006168:Guinea Pigs; D011247:Pregnancy; D011270:Pregnancy, Animal; D011863:Radioimmunoassay
chemical_list: D015068:17-Ketosteroids; D000736:Androstenes; D004967:Estrogens