Hoque, S.; Muttalib, M.; Islam, M. I.; Khanam, P. A.; Choudhury, S. Evaluation of HbA1c Level and Other Risk Factors in Diabetic Retinopathy: A Study of Type 2 Diabetic Patients Attending in a Tertiary Level Hospital. Khwaja Yunus Ali Medical College Journal 2017, 6, 614-619.