Miroux Catarino, A., Catorze, M. G., & Viana, I. (2018). Subungual Keratoacanthoma: A Rare Variant of Keratoacanthoma. Journal of the Portuguese Society of Dermatology and Venereology, 76(4), 425-428. https://doi.org/10.29021/spdv.76.4.922