Ezat, G., S. EL GHOHARY, and M. EL SAYED. “Role of Tumour Necrosis Factor-Alpha and Interleukin-6 in the Development and Progression of Diabetic Retinopathy in Type 2 Diabetes Mellitus Patients”. JOURNAL OF ADVANCES IN BIOLOGY, vol. 7, no. 3, June 2015, pp. 1360-7, doi:10.24297/jab.v7i3.4576.