The effects of an intrauterine device containing norgestrel in the rat.
D000818:Animals; D002214:Capsules; D010064:Embryo Implantation / Q000187:drug effects*; D004971:Estrus; D005260:Female; D007434:Intrauterine Devices; D009644:Norgestrel / Q000008:administration & dosage / Q000494:pharmacology*; D011247:Pregnancy; D051381:Rats; D012826:Silicone Elastomers; D013997:Time Factors; D014599:Uterus / Q000502:physiology*
D002214:Capsules; D012826:Silicone Elastomers; D009644:Norgestrel