title: Maintenance of unimplanted fertilized ova in spayed rats. I. Effects of laparotomy, ligation of the uterine cervix, ligation of the ovarian blood vessels, progesterone therapy and the implantation-inducing hormonal regimen.
mesh_terms: D000818:Animals; D002369:Castration; D002584:Cervix Uteri / Q000601:surgery; D010064:Embryo Implantation; D004970:Estrone / Q000494:pharmacology*; D005260:Female; D005306:Fertilization; D007813:Laparotomy; D008026:Ligation; D010053:Ovary / Q000098:blood supply; D010063:Ovum / Q000502:physiology*; D011247:Pregnancy; D011374:Progesterone / Q000494:pharmacology*; D051381:Rats; D014599:Uterus / Q000601:surgery
chemical_list: D004970:Estrone; D011374:Progesterone