The IUD and endometrial bleeding.
D000747:Anemia, Hypochromic / Q000209:etiology; D004717:Endometrium; D005260:Female; D006801:Humans; D007434:Intrauterine Devices / Q000009:adverse effects*; D007436:Intrauterine Devices, Medicated; D008599:Menstruation Disturbances / Q000209:etiology; D014592:Uterine Hemorrhage / Q000453:epidemiology / Q000209:etiology* / Q000517:prevention & control