title: A rational approach to the IUCD.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007434:Intrauterine Devices / Q000009:adverse effects; D008875:Middle Aged; D000292:Pelvic Inflammatory Disease / Q000209:etiology; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000209:etiology