Fig. 1From: Evaluating urinary estrogen and progesterone metabolites using dried filter paper samples and gas chromatography with tandem mass spectrometry (GC–MS/MS)Hormone profiles of serum progesterone versus urinary 5β-pregnanediol (a) and serum estradiol and urinary estradiol (b) in four premenopausal women. Cr, creatinine; βPg, β-pregnanediolBack to article page
