Arif, M. J. ., Gupta, S. K. ., & Khalifah, F. A. . (2017). Prevalence of Vitamin D Deficiency and Its Associated Disorders at a Tertiary Care Hospital of The Al Qassim Region of Saudi Arabia. National Journal of Community Medicine, 8(11), 654–657. Retrieved from https://njcmindia.com/index.php/file/article/view/1633