Bonifazi, E. “Nail Changes in Tuberous Sclerosis: Are All of Them Caused by Koenen Fibromas?”. European Journal of Pediatric Dermatology, vol. 22, no. 4, Dec. 2012, p. 290, https://ejpd.migration.pkpps03.publicknowledgeproject.org/index.php/journal/article/view/812.