Khan, Ahmad, Muhammed Zubair, Shakeel Khan, Usman khalid, Khawar Sultan, and Muhammad Kashif Khan. “The Role of Vitamin D Deficiency and Supplementation in Onset and Progression of Diabetic Nephropathy: A Systematic Review”. Romanian Journal of Diabetes Nutrition and Metabolic Diseases 29, no. 1 (March 28, 2022): 135-154. Accessed July 19, 2024. http://rjdnmd.org/index.php/RJDNMD/article/view/1093.