Recommended procedures for the statistical evaluation of intrauterine contraception.
D000328:Adult; D005260:Female; D006801:Humans; D007434:Intrauterine Devices / Q000009:adverse effects; D010146:Pain / Q000209:etiology; D011247:Pregnancy; D011275:Pregnancy, Unwanted; D013223:Statistics as Topic; D013997:Time Factors; D014592:Uterine Hemorrhage / Q000209:etiology