Hameed, Dr Maria, Mudassar Zia, Muniza Qayyum, Hijab Hameed, Riffat Yasmin, and Shabab Zahra. “The Association Between Rheumatoid Arthritis and Serum Levels of Vitamin D”. Esculapio Journal of SIMS 19, no. 3 (November 8, 2023): 269–272. Accessed May 14, 2024. https://esculapio.pk/journal/index.php/journal-files/article/view/240.