Flawed research does not permit valid inferences about Cu-7 intrauterine contraceptive device.
Orleans
M
M
D003300:Copper; D005260:Female; D006801:Humans; D007434:Intrauterine Devices / Q000009:adverse effects*; D000292:Pelvic Inflammatory Disease / Q000209:etiology; D012107:Research Design
D003300:Copper