Intra-urine device and embryonic survival in the rat.
D000022:Abortion, Spontaneous; D000818:Animals; D004622:Embryo, Mammalian; D005260:Female; D007434:Intrauterine Devices; D011247:Pregnancy; D051381:Rats; D014599:Uterus / Q000502:physiology; D014626:Vaginal Smears