[Contraceptive research and development].
Weng
L
L
D003280:Contraceptives, Oral, Synthetic; D003281:Contraceptives, Postcoital; D005260:Female; D006801:Humans; D007436:Intrauterine Devices, Medicated; D015735:Mifepristone
D003280:Contraceptives, Oral, Synthetic; D003281:Contraceptives, Postcoital; D015735:Mifepristone