Crespi, H.G., et al. “Juvenile Xanthogranuloma. Report of 2 Cases and Review of Literature”. European Journal of Pediatric Dermatology, vol. 7, no. 2, June 1997, pp. 81-4, https://ejpd.migration.pkpps03.publicknowledgeproject.org/index.php/journal/article/view/21.