Siqueira Ramos, F., F. R. Ferreira, S. H. Mandelbaum, and F. da Rocha Gonçalves. “Multiple Adult Xanthogranuloma: Case Report and Brief Literature Review”. Journal of the Portuguese Society of Dermatology and Venereology, Vol. 75, no. 2, July 2017, pp. 193-6, doi:10.29021/spdv.75.2.777.