“Serum 25-Hydroxy Vitamin D Level in Patients With Alopecia Areata and Its Relationship With Severity of the Disease”. Journal of Dhaka Medical College 32, no. 2 (September 23, 2025): 100–106. Accessed July 9, 2026. https://banglajol.info/index.php/JDMC/article/view/83430.