Ayatollahi, F., M. Tabrizizadeh, H. Razavi, and M. Mowji. “Diagnostic Value of Cone-Beam Computed Tomography and Digital Periapical Radiography in Detection of Separated Instruments”. Iranian Endodontic Journal, vol. 14, no. 1, Jan. 2019, pp. 14-17, doi:10.22037/iej.v14i1.22590.