Intrauterine devices.
D004412:Dysmenorrhea / Q000209:etiology; D005260:Female; D006801:Humans; D007434:Intrauterine Devices / Q000009:adverse effects / Q000706:statistics & numerical data*; D010353:Patient Education as Topic; D000292:Pelvic Inflammatory Disease / Q000209:etiology; D011247:Pregnancy