Waseem, R. F., K. I. Khan, M. . Khan, A. Moiz, N. Jehan, and H. . Zahir. “Comparative Evaluation of Postoperative Pain Following Single Visit and Two Visit Endodontic Therapy in Non-Vital Teeth: Postoperative Pain in Non-Vital Teeth”. Pakistan Journal of Health Sciences, vol. 3, no. 06, Nov. 2022, pp. 145-9, doi:10.54393/pjhs.v3i06.313.