title: Specific quantitation of urinary progesterone by gas chromatography-mass spectrometry.
mesh_terms: D002849:Chromatography, Gas / Q000379:methods; D005260:Female; D006801:Humans; D013058:Mass Spectrometry / Q000379:methods; D011374:Progesterone / Q000652:urine*; D011863:Radioimmunoassay
chemical_list: D011374:Progesterone