CUTRONE, M.; MILANO, A.; BONIFAZI, E. Skin disorders of the umbilicus. European Journal of Pediatric Dermatology, [S. l.], v. 14, n. 2, p. 2004, 2004. Disponível em: https://ejpd.migration.pkpps03.publicknowledgeproject.org/index.php/journal/article/view/291. Acesso em: 11 sept. 2026.