title: Quantitation of up to 12 estrogens in 1-50  l of pregnancy urine.
mesh_terms: D002849:Chromatography, Gas; D004958:Estradiol / Q000652:urine; D004964:Estriol / Q000652:urine; D004967:Estrogens / Q000652:urine*; D004970:Estrone / Q000652:urine; D005260:Female; D006801:Humans; D013058:Mass Spectrometry; D008722:Methods; D008832:Microchemistry; D011247:Pregnancy
chemical_list: D004967:Estrogens; D004970:Estrone; D004958:Estradiol; D004964:Estriol