title: Calcium deposits on IUDs may play role in infections.
mesh_terms: D000190:Actinomyces / Q000254:growth & development; D000196:Actinomycosis / Q000209:etiology*; D002118:Calcium / Q000378:metabolism*; D005260:Female; D006801:Humans; D007434:Intrauterine Devices / Q000009:adverse effects*; D000292:Pelvic Inflammatory Disease / Q000209:etiology; D013997:Time Factors
chemical_list: D002118:Calcium