title: Effects of norethindrone (17-ethynyl-17 -hydroxy-4-estren-3-one) and norgestrel (dl-13 -ethyl-17-ethynyl-17 -hydroxy-4-gonen-3-one) on the tissue distribution of  3 H-estradiol-17  in ovariectomized rats.
mesh_terms: D000311:Adrenal Glands / Q000032:analysis; D000818:Animals; D002369:Castration; D002531:Cerebellum / Q000032:analysis; D002849:Chromatography, Gas; D004958:Estradiol / Q000032:analysis / Q000097:blood / Q000378:metabolism*; D005260:Female; D007031:Hypothalamus / Q000032:analysis; D008099:Liver / Q000032:analysis; D009640:Norethindrone / Q000302:isolation & purification / Q000494:pharmacology*; D009644:Norgestrel / Q000494:pharmacology*; D010053:Ovary / Q000502:physiology*; D010902:Pituitary Gland / Q000032:analysis; D051381:Rats; D014316:Tritium; D014599:Uterus / Q000032:analysis; D014621:Vagina / Q000032:analysis
chemical_list: D014316:Tritium; D009644:Norgestrel; D004958:Estradiol; D009640:Norethindrone