Al-Kadhim, A. H. ., Z. A. Rajion, N. . AB Malik, and A. . Jaafar. “Morphology of Maxillary First Molars Analyzed by Cone-Beam Computed Tomography Among Malaysian: Variations in the Number of Roots and Canals and the Incidence of Fusion”. IIUM Medical Journal Malaysia, vol. 16, no. 2, Dec. 2017, doi:10.31436/imjm.v16i2.322.