Mohamed Osman, Z., Omar, T., & Salim, M. (2017). The Effect of Primary Open Angle Glucoma on Progression of Diabetic Retinopathy in Type 2 Diabetic Patients in Alsayem Eye Hospital. Gezira Journal Of Health Sciences, 13(1). Retrieved from http://journals.uofg.edu.sd/index.php/gjhs/article/view/1014