1. Selected practice recommendations for contraceptive use;World Health Organization,2008
2. U.S. selected practice recommendations for contraceptive use, 2013;Centers for Disease Control and Prevention;Morb Mortal Wkly Rep,2013
3. Family planning: a global handbook for providers;World Health Organization/Department of Reproductive Health and Research (WHO/RHR),2007
4. Maternal use of oral contraceptives and risk of birth defects in Denmark: prospective, nationwide cohort study;Charlton;BMJ,2016
5. The long-term growth and development of children exposed to Depo-Provera during pregnancy or lactation;Pardthaisong;Contraception,1992