The modernization of U.S. contraceptive practice.
D000367:Age Factors; D003267:Contraception; D003276:Contraceptives, Oral; D005193:Family Planning Services; D005260:Female; D006801:Humans; D007434:Intrauterine Devices; D008297:Male; D008722:Methods; D011247:Pregnancy; D044469:Racial Groups; D012737:Sex Factors; D013245:Sterilization, Reproductive; D014481:United States
D003276:Contraceptives, Oral