[1]
H. Ashraf, O. Dianat, R. Hajrezai, P. Paymanpour, and S. Azadnia, “Endodontic Treatment of a Double-Rooted Maxillary Second Molar with Four Canals: A Case Report”, Iran Endod J, vol. 9, no. 4, pp. 304–306, Oct. 2014.