title: Mass fragmentographic determination of eleven estrogens in the body fluids of pregnant and nonpregnant subjects.
mesh_terms: D015068:17-Ketosteroids / Q000378:metabolism; D000535:Aluminum; D001646:Bile / Q000378:metabolism; D002845:Chromatography; D002849:Chromatography, Gas; D004958:Estradiol / Q000378:metabolism; D004964:Estriol / Q000378:metabolism; D004967:Estrogens / Q000032:analysis / Q000378:metabolism* / Q000652:urine; D004970:Estrone / Q000378:metabolism; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D013058:Mass Spectrometry; D008433:Mathematics; D008593:Menopause; D008598:Menstruation; D008722:Methods; D008832:Microchemistry; D008875:Middle Aged; D011247:Pregnancy; D012822:Silicon Dioxide; D013997:Time Factors
chemical_list: D015068:17-Ketosteroids; D004967:Estrogens; D004970:Estrone; D004958:Estradiol; D012822:Silicon Dioxide; D000535:Aluminum; D004964:Estriol