title: A double isotope procedure for the determination of progestins in rat ovarian vein blood.
mesh_terms: D000818:Animals; D002247:Carbon Isotopes / Q000097:blood; D005260:Female; D007016:Hypophysectomy; D008722:Methods; D010053:Ovary / Q000098:blood supply* / Q000378:metabolism; D011374:Progesterone / Q000097:blood* / Q000378:metabolism; D011865:Radioisotope Dilution Technique; D051381:Rats; D014316:Tritium / Q000097:blood; D014680:Veins
chemical_list: D002247:Carbon Isotopes; D014316:Tritium; D011374:Progesterone