Ul Kadir, S. M. .; Ali, M. .; Islam, M. S. .; Parvin, R. .; Quadir, A. .; Raihani, M. J. .; Islam, A. R. .; Ahmmed, S. . Prevalence of Refractive Errors Among Primary School Children in the Southern Region of Bangladesh. Comm. Based Med J 2022, 11, 41-45.