1. Emergency contraception. Practice Bulletin No. 152. American College of Obstetricians and Gynecologists. Obstet Gynecol,2015
2. U.S. Selected Practice Recommendations for contraceptive Use, 2016;Curtis;MMWR Recomm Rep,2016
3. Sexual assault and abuse and STDs. 2015 sexually Transmitted Diseases treatment guidelines,2015
4. Emergency contraception;Upadhya;Pediatrics,2019