H. R. Hasan, N. N. A. Aburahma, and A. K. A. AL-Kazaz, “Oxidative Stress Status in Sera and Saliva of Type 2 Diabetic Iraqi Patients with and without Proliferative Diabetic Retinopathy”, ajc, vol. 31, no. 3, pp. 719–722, Jan. 2019.