title: [Metabolism of synthetic progestogen--on portal injection method].
mesh_terms: D000818:Animals; D002247:Carbon Isotopes; D002845:Chromatography; D005260:Female; D007275:Injections, Intravenous; D011169:Portal Vein; D011374:Progesterone / Q000008:administration & dosage / Q000378:metabolism*; D011817:Rabbits; D014316:Tritium
chemical_list: D002247:Carbon Isotopes; D014316:Tritium; D011374:Progesterone