History (of oral contraceptives).
D003267:Contraception; D003276:Contraceptives, Oral; D004467:Economics; D005193:Family Planning Services; D010060:Ovulation; D012106:Research; D013672:Technology
D003276:Contraceptives, Oral
Contraception; Contraceptive Methods--history; Contraceptive Mode Of Action; Economic Factors; Family Planning; Oral Contraceptives--history; Ovulation Suppression; Research And Development; Technology