title: [Biosynthesis of steroid hormones--an approach to endocrinology].
mesh_terms: D000818:Animals; D002247:Carbon Isotopes; D006908:Hydroxyprogesterones / Q000096:biosynthesis; D008297:Male; D010103:Oxygen Isotopes; D011725:Pyridines / Q000494:pharmacology; D013256:Steroids / Q000096:biosynthesis*; D013737:Testis / Q000201:enzymology / Q000378:metabolism; D013739:Testosterone / Q000096:biosynthesis
chemical_list: D002247:Carbon Isotopes; D006908:Hydroxyprogesterones; D010103:Oxygen Isotopes; D011725:Pyridines; D013256:Steroids; D013739:Testosterone