Khalid, Aniqua, Farid ur Rehman, and Asma Javed. “Evaluation of Serum Vitamin-D Levels in Patients With Alopecia Areata”. Pakistan Armed Forces Medical Journal 72, no. 6 (January 11, 2023): 2193–96. Accessed December 18, 2024. https://pafmj.org/PAFMJ/article/view/7227.