PRASHAANTHI. N, I. . NASIM, and SHANTHA SUNDARI .K.K. “Evaluation of Non-Vital Teeth With Various Endodontic Pathologies-a Retrospective Study”. The Journal of Contemporary Issues in Business and Government, vol. 26, no. 2, Aug. 2020, pp. 11-18, https://cibgp.com/au/index.php/1323-6903/article/view/227.