Memon, A. R., R. Ahmadani, J. H. Lighari, M. Y. Memon, and S. Chandio. “Status of Serum Magnesium Level in Diabetic Retinopathy & Non Retinopathy in the Patients of Type-II Diabetes Mellitus”. Journal of Liaquat University of Medical & Health Sciences, vol. 17, no. 04, Apr. 2019, pp. 221-4, http://ojs.lumhs.edu.pk/index.php/jlumhs/article/view/30.