Ragab , M. H. ., Abdalla , A. Y. ., & Sharaan, M. E.-S. . (2022). Location of the Maxillary Posterior Tooth Apices to the Sinus Floor in an Egyptian Subpopulation Using Cone-beam Computed Tomography. Iranian Endodontic Journal, 17(1), 7–12. https://doi.org/10.22037/iej.v17i1.34696