Shehzad, A., Khurshid, K., Pal, S. S., & Haroon, T. S. (2016). Topical calcipotriol versus oral psoralen-UVA (PUVA) and topical calcipotriol in the treatment of vitiligo in type IV skin. Journal of Pakistan Association of Dermatologists, 17(2), 89–94. Retrieved from https://www.jpad.com.pk/index.php/jpad/article/view/693