Fahim M, Khoso H, Hussain A, Bakhtiar R. Deficiency in alopecia areata and responsiveness to vitamin D analogues: A prospective trial. J Pak Assoc Dermatol [Internet]. 2023Oct.12 [cited 2026Feb.26];33(4):1242-8. Available from: https://www.jpad.com.pk/index.php/jpad/article/view/2302