title: Selected ion monitoring: a new approach for the specific determination of steroids in the lower picogram range.
mesh_terms: D000293:Adolescent; D003903:Deuterium; D004958:Estradiol / Q000097:blood*; D005260:Female; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D006801:Humans; D007553:Isotope Labeling / Q000379:methods; D008297:Male; D008598:Menstruation; D008832:Microchemistry; D012737:Sex Factors
chemical_list: D004958:Estradiol; D003903:Deuterium