Razmi, Hasan, Noushin Shokouhinejad, and Mohsen Hooshyar. “An In Vitro Study of the Number of Distal Roots and Canals in Mandibular First Molars in Iranian Population”. Iranian Endodontic Journal 3, no. 1 (September 20, 2008): 126–130. Accessed April 20, 2024. https://journals.sbmu.ac.ir/iej/article/view/33.