E. Shadmehr, S. Hashemi, S. S. Hashemi, Y. jung chung, A. . Goudarzi, and A. . Khademi, “The The Effect of Adding Clonidine to Articaine and Epinephrine on Post-treatment Pain: A Randomized Clinical Trial Study”, Iran Endod J, vol. 16, no. 4, pp. 210–216, Oct. 2021.