Studies on the antifertility effect of intrauterine devices in the cow.
D000818:Animals; D001947:Breeding; D002417:Cattle / Q000502:physiology*; D005260:Female; D005298:Fertility; D005306:Fertilization; D005313:Fetal Death; D007434:Intrauterine Devices; D011247:Pregnancy; D011270:Pregnancy, Animal