1. Condom use by adolescents.;Kaplan;Pediatrics,2001
2. Centers for Disease Control and Prevention. Condom Distribution as a Structural Level Intervention. Atlanta, GA: Centers for Disease Control and Prevention; 2010. Available at: www.cdc.gov/hiv/resources/factsheets/PDF/condom_distribution.pdf. Accessed April 25, 2012
3. Youth risk behavior surveillance—United States, 2011.;Eaton;MMWR Surveill Summ,2012
4. Centers for Disease Control and Prevention. Births: final data 2011. Natl Vital Stat Rep. 2013;62(1). Available at: www.cdc.gov/nchs/data/nvsr/nvsr62/nvsr62_01.pdf. Accessed October 1, 2013
5. Estimated pregnancy rates and rates of pregnancy outcomes for the United States, 1990–2008.;Ventura;Natl Vital Stat Rep,2012