Baig, M. A. ., Humail, S. M. ., Iqbal, M., & Islam, N. ul . (2009). Serum Vitamin D in Common Non-Metabolic Disorders: Results of Patients’ Survey at Public Hospitals of Karachi. Journal of the Dow University of Health Sciences (JDUHS), 3(3), 114–120. Retrieved from https://jduhs.jduhs.duhs.edu.pk/index.php/jduhs/article/view/1343