Letter: Infection and the IUD.
D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D007239:Infections / Q000209:etiology*; D007434:Intrauterine Devices / Q000009:adverse effects*; D008875:Middle Aged; D000292:Pelvic Inflammatory Disease / Q000453:epidemiology / Q000209:etiology