title: Methodological validation of HCS, estriol, estradiol and progesterone radioimmunoassay in pregnancy.
mesh_terms: D004958:Estradiol / Q000097:blood*; D004964:Estriol / Q000097:blood*; D005260:Female; D006801:Humans; D010928:Placental Lactogen / Q000097:blood*; D011247:Pregnancy; D011374:Progesterone / Q000097:blood*; D011863:Radioimmunoassay / Q000379:methods
chemical_list: D011374:Progesterone; D004958:Estradiol; D010928:Placental Lactogen; D004964:Estriol