Biologic mode of action of the Lippes loop in intrauterine contraception.
D003267:Contraception; D004717:Endometrium / Q000166:cytology; D005260:Female; D006801:Humans; D007434:Intrauterine Devices; D008264:Macrophages / Q000502:physiology; D008297:Male; D008938:Mitosis; D010587:Phagocytosis; D013094:Spermatozoa; D014626:Vaginal Smears