title: The Dalkon Shield, the TCu 200, and the TCu 380A in private practice.
mesh_terms: D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D007433:Intrauterine Device Expulsion; D007434:Intrauterine Devices / Q000009:adverse effects; D007435:Intrauterine Devices, Copper / Q000009:adverse effects; D009343:Neisseria / Q000302:isolation & purification; D000292:Pelvic Inflammatory Disease / Q000209:etiology; D011247:Pregnancy