Khademi, Abbasali, Asieh Zamani Naser, Zahra Bahreinian, Mojdeh Mehdizadeh, Mojtaba Najarian, and Saber Khazaei. 2017. “Root Morphology and Canal Configuration of First and Second Maxillary Molars in a Selected Iranian Population: A Cone-Beam Computed Tomography Evaluation”. Iranian Endodontic Journal 12 (3):288-92. https://doi.org/10.22037/iej.v12i3.13708.