1. Department of Reproductive Health and Research, Family and Community Health;World Health Organization,2004
2. U.S. selected practice recommendations for contraceptive use;Centers for Disease Control, Prevention,2013
3. Guidelines for women’s health care: a resource manual;American College of Obstetricians and Gynecologists,2007
4. Cervical cancer screening continues to limit provision of contraception;Schwarz;Contraception,2005
5. Pelvic examinations and access to oral hormonal contraception;Henderson;Obstet Gynecol,2010