Cambiaghi, S., et al. “Oral-Facial-Digital Syndrome Type I. Importance of the Skin Manifestations”. European Journal of Pediatric Dermatology, vol. 5, no. 3, Feb. 2018, pp. 145-8, https://ejpd.migration.pkpps03.publicknowledgeproject.org/index.php/journal/article/view/1613.