D’Antuono, A., S. Zauli, F. Bardazzi, A. Ismaili, F. Negosanti, and E. Bonifazi. 2009. “Congenital Syphilis. Guidelines for the Diagnosis and Treatment.”. European Journal of Pediatric Dermatology 19 (1):49-54. https://ejpd.com/index.php/journal/article/view/607.