Kawsar, R., M. Hossain, M. M. R. Howlader, M. M. M. Hossain, M. J. Abdin, and M. S. Alam. “A 16-Year-Old Boy With Chronic Discharging Sinus on Upper Left Lateral Incisor Tooth”. Bangabandhu Sheikh Mujib Medical University Journal, vol. 12, no. 1, Mar. 2019, pp. 45-49, doi:10.3329/bsmmuj.v12i1.40170.