Chau, N.T. , Ngoc, . V.T.N., Duc, V.V. , Hanh, T.T.H. and Dinh, T.C. 2019. Endodontic Retreatment of an Upper First Molar with Bifurcated Palatal Canal Using Preoperative Cone-beam Computed Tomography: A Case Report. Open Access Macedonian Journal of Medical Sciences. 7, 24 (Dec. 2019), 4337–4341. DOI:https://doi.org/10.3889/oamjms.2019.387.