Güven Şakalar, Emine, Hikmet Başmak, Hüseyin Gürsoy, and Hamdi Çaklı. 2017. “Evaluation of Endoscopic Examination and Paranasal Computed Tomography Findings in Failed Dacryocystorhinostomy Patients”. ENT Updates 7 (3). https://doi.org/10.2399/jmu.2017003007.