R. A. Roman, M. Hedeşiu, M. Gersak, F. Fidan, G. Băciuț, and M. Băciuț, “Assessing the prevalence of paranasal sinuses anatomical variants in patients with sinusitis using Cone Beam Computer Tomography”, Med Pharm Rep, vol. 89, no. 3, pp. 423–429, Jul. 2016.