title: The diurnal pattern of 17 --oestradiol in pregnancy.
mesh_terms: D002849:Chromatography, Gas; D002940:Circadian Rhythm; D004958:Estradiol / Q000097:blood*; D005260:Female; D006801:Humans; D011247:Pregnancy; D013997:Time Factors
chemical_list: D004958:Estradiol