title: Biosynthesis of progesterone from endogenous steroid precursor by the guinea-pig placenta.
mesh_terms: D000818:Animals; D002458:Cell Fractionation; D002498:Centrifugation; D005260:Female; D006168:Guinea Pigs; D009243:NAD / Q000378:metabolism; D009249:NADP / Q000378:metabolism; D010920:Placenta / Q000378:metabolism*; D011284:Pregnenolone / Q000378:metabolism; D011374:Progesterone / Q000096:biosynthesis*
chemical_list: D009243:NAD; D011374:Progesterone; D009249:NADP; D011284:Pregnenolone