González, José R., Lizette Chabrier, and Ricardo J. Rodríguez. “Papillon-Lefevre Syndrome: A Case Report and Review of the Literature”. Puerto Rico Health Sciences Journal 16, no. 3 (October 11, 2019). Accessed December 19, 2025. https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/2181.