Butt, Mehwish Arif, Asma Arman, and Tahir Ansari. “FREQUENCY OF 25-HYDROXY VITAMIN D DEFICIENCY IN PATIENTS WITH MULTIPLE SCLEROSIS”. KHYBER MEDICAL UNIVERSITY JOURNAL 14, no. 1 (March 31, 2022): 42–6. Accessed December 9, 2024. https://www.kmuj.kmu.edu.pk/article/view/22039.