Escobar-García, Diana María, et al. “Cytotoxicity, Cell Adhesion, and Apoptotic Gene Expression in Periodontal Ligament Fibroblasts Treated With Endodontic Sealers”. Puerto Rico Health Sciences Journal, vol. 38, no. 4, Dec. 2019, https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/1893.