Two million ever-married women are IUD users; Lippes Loop most popular, followed by Copper 7.
D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D007434:Intrauterine Devices / Q000706:statistics & numerical data*; D007435:Intrauterine Devices, Copper / Q000706:statistics & numerical data; D014481:United States