Nafisa Naseer; Warda Shafique; Nasiba Mumtaz; Mohsina Ali; Muhammad Bilal; Hanan Azfar; Tasneem Shahzadi; Sajjad Haider. Association of Vitamin D Deficiency With Disease Activity and Severity in Rheumatoid Arthritis Patients. JHWCR 2026, 4 (7), 1-9. https://doi.org/10.61919/m62prq04.