Shah, Naveed Ahmed, Muhammad Amir, Lubna Noreen, Jamil Ahmed Shah, Rubina Habib, Naveed Khan, and Yasser Nadeem. 2018. “SERUM MAGNESIUM LEVELS IN DIABETIC RETINOPATHY: Diabetic Retinopathy”. Pakistan Armed Forces Medical Journal 68 (4): 740-44. https://pafmj.org/PAFMJ/article/view/22.