Contraceptive technology: advances needed in fundamental research.
D003267:Contraception; D003276:Contraceptives, Oral; D005380:Financing, Government; D007390:International Agencies; D007434:Intrauterine Devices; D009316:National Institutes of Health (U.S.); D010906:Pituitary Hormone-Releasing Hormones; D011155:Population Control; D012109:Research Support as Topic; D014481:United States
D003276:Contraceptives, Oral; D010906:Pituitary Hormone-Releasing Hormones