Ahmed, I., H. Ali, M. Sarwar, and K. H. Alvi. “Assessment of Hypothyroidism in Diffuse Nonscarring Alopecia”. Journal of Pakistan Association of Dermatologists, vol. 16, no. 1, Jan. 2017, pp. 20-23, https://www.jpad.com.pk/index.php/jpad/article/view/841.