Emergency contraception with levonorgestrel or the Yuzpe regimen. Task Force on Postovulatory Methods of Fertility Regulation.
von Hertzen
H
H
Piaggio
G
G
Van Look
P F
PF
D003283:Contraceptives, Postcoital, Synthetic; D005260:Female; D006801:Humans; D016912:Levonorgestrel; D013997:Time Factors
D003283:Contraceptives, Postcoital, Synthetic; D016912:Levonorgestrel