Mozayeni, M., A. Golshah, and N. Nik Kerdar. “A Survey on NiTi Rotary Instruments Usage by Endodontists and General Dentist in Tehran”. Iranian Endodontic Journal, vol. 6, no. 4, June 2012, pp. 168-75, doi:10.22037/iej.v6i4.2257.