Elzainy, P., W. Hussein, A. Hashem, and M. Badr. “Post-Operative Pain After Different Root Canal Irrigant Activation Methods in Patients With Acute Apical Periodontitis (Randomized Clinical Trial)”. Open Access Macedonian Journal of Medical Sciences, vol. 10, no. D, July 2022, pp. 331-7, doi:10.3889/oamjms.2022.10156.