Bashir, Z.- tul-A., H. Amjad, S. T. A. Gilani, A. . Khan, and S. U. Riaz. “Frequency of Vitamin D Deficiency in Newly Diagnosed Type 2 Diabetes Mellitus Patients”. National Journal of Health Sciences, vol. 3, no. 3, Dec. 2020, pp. 83-87, https://ojs.njhsciences.com/index.php/njhs/article/view/81.