Pontillo, A., P. Farro, F. Di Girolamo, M. De Roma, R. Conca, A. Berloco, and E. Bonifazi. “Nevus Depigmentosus.”. European Journal of Pediatric Dermatology, vol. 10, no. 3, Sept. 2000, pp. 145-54, https://www.ejpd.com/index.php/journal/article/view/127.