Contraceptive mechanism of IUDs.
D000293:Adolescent; D000328:Adult; D000469:Alkaline Phosphatase / Q000032:analysis; D002582:Cervix Mucus; D004717:Endometrium / Q000033:anatomy & histology; D005260:Female; D006801:Humans; D007434:Intrauterine Devices; D010053:Ovary / Q000033:anatomy & histology; D010060:Ovulation; D014626:Vaginal Smears
D000469:Alkaline Phosphatase