Four years of a comparative study with Nova T and Copper T 200 IUDS.
D000328:Adult; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D007239:Infections / Q000209:etiology; D007433:Intrauterine Device Expulsion; D007435:Intrauterine Devices, Copper / Q000009:adverse effects; D011247:Pregnancy; D011897:Random Allocation; D013223:Statistics as Topic