title: Quantitation of progesterone and 20 alpha-dihydroprogesterone in human placenta and fetal membranes.
mesh_terms: D004092:20-alpha-Dihydroprogesterone / Q000032:analysis*; D002853:Chromatography, Liquid; D005321:Extraembryonic Membranes / Q000032:analysis*; D005260:Female; D006801:Humans; D066298:In Vitro Techniques; D010920:Placenta / Q000032:analysis*; D011247:Pregnancy; D011374:Progesterone / Q000031:analogs & derivatives* / Q000032:analysis*
chemical_list: D004092:20-alpha-Dihydroprogesterone; D011374:Progesterone