“Radiographical Study of the Shape and Number of Root Canals of the Upper First Premolars in Syrian Populations Using Cone Beam Computed Tomography (CBCT)”. Journal of Hama University 7, no. السابع (October 10, 2024). Accessed June 6, 2026. https://journal.hama-univ.edu.sy/huj/article/view/1971.