Pando, J. R., Canino, G., Ramírez, R., Chávez, L. M., & Martínez-Taboas, A. (2007). Prevalence and factors associated to sexual behavior in Puerto Rican adolescents. Puerto Rico Health Sciences Journal, 26(4). Retrieved from https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/224