1. Centers for Disease Control and Prevention. Condom Fact Sheet for Public Health Personnel. Centers for Disease Control and Prevention. https://www.cdc.gov/condomeffectiveness/latex.html. Published 2013. Accessed November 26, 2019.
2. Centers for Disease Control and Prevention. Condom Effectiveness. Centers for Disease Control and Prevention. https://www.cdc.gov/condomeffectiveness/index.html. Published 2016. Accessed November 02, 2020.