Utilization of precursor steroids in placental progesterone synthesis.
D002247:Carbon Isotopes; D002784:Cholesterol / Q000378:metabolism; D002854:Chromatography, Paper; D002855:Chromatography, Thin Layer; D005260:Female; D006801:Humans; D010920:Placenta / Q000201:enzymology / Q000378:metabolism*; D011247:Pregnancy; D011284:Pregnenolone / Q000378:metabolism; D011374:Progesterone / Q000096:biosynthesis* / Q000378:metabolism; D011874:Radiometry
D002247:Carbon Isotopes; D011374:Progesterone; D011284:Pregnenolone; D002784:Cholesterol