Brar, S. K., G. N. Bhale, and B. K. Brar. “A Localized Non-Healing Ulcer: An Unusual Clinical Presentation of Pemphigus Vulgaris”. International Journal of Research in Dermatology, vol. 6, no. 3, Apr. 2020, pp. 413-5, doi:10.18203/issn.2455-4529.IntJResDermatol20201590.