Fertility control: health and educational factors for the 1970s. Trends in contraception.
D000293:Adolescent; D000328:Adult; D003267:Contraception; D003276:Contraceptives, Oral; D005193:Family Planning Services; D005260:Female; D006801:Humans; D007434:Intrauterine Devices
D003276:Contraceptives, Oral