Evaluation of intrauterine devices: ninth progress report of the Cooperative Statistical Program.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007433:Intrauterine Device Expulsion; D007434:Intrauterine Devices; D008722:Methods; D008875:Middle Aged; D010298:Parity; D011247:Pregnancy; D011275:Pregnancy, Unwanted; D013223:Statistics as Topic; D014481:United States