N. A. Shah, “SERUM MAGNESIUM LEVELS IN DIABETIC RETINOPATHY: Diabetic Retinopathy”, Pak Armed Forces Med J, vol. 68, no. 4, pp. 740–44, Aug. 2018, Accessed: May 23, 2025. [Online]. Available: https://www.pafmj.org/PAFMJ/article/view/22