Colón-López, Vivian, et al. “Burden of Human Papilloma Virus Infection and Related Comorbidities in Men: Implications for Research, Disease Prevention and Health Promotion Among Hispanic Men”. Puerto Rico Health Sciences Journal, vol. 29, no. 3, Aug. 2010, https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/491.