G. T. M. Candeiro, F. L. P. Viana, H. C. Paiva, C. L. Caldeira, E. F. Iglecias, and G. Gavini, “Endodontic Retreatment of a Maxillary Central Incisor with Two Root Canals in a Patient with Cleft Lip and Palate”, Iran Endod J, vol. 14, no. 3, pp. 235–239, Jul. 2019.