《参考文件》

[1]国度药典委员会．中国药典，2010版，开云sports第二部[M]．北京：中国医药科技出书社，

[2]"Progestins (Etonogestrel， Levonorgestrel， Norethindrone)". The American Society of Health-System Pharmacists. Archived from the original on 2015-09-07.

[3]WorldHealthOrganization. Research on reproductive health at WHO:Biennial report[J]. Publications of World Health Organization.

[4] Gemzell-Danielsson K . Mechanism of action of emergency contraception[J]. Contraception， 2010， 82( 5):404-409.

[5]Fact sheet on the safety of levonorgestrel-alone emergency contraceptive pills (LNG ECPs)[J]. Geneva : World Health Organization， 2010.

[6]Leung， Vivian， W， et al. Mechanisms of Action of Hormonal Emergency Contraceptives.[J]. Pharmacotherapy， 2010.

[7] Nieschlag E . Clinical Trials in Male Hormonal Contraception[J]. Contraception， 2010， 82(5):457-470.

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