Suárez-Martínez, E. B., Ruiz, A., Matias, J., Morales, L., Cruz, A., Vázquez, D., … Matta, J. L. (2007). Early-onset of sporadic basal-cell carcinoma: Germline mutations in the TP53, PTCH, and XPD genes. Puerto Rico Health Sciences Journal, 26(4). Retrieved from https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/223