Bonifazi, E., and A. Milano. 2012. “Rebound Effect in Subglottic Hemangioma Treated With Propranol. Usefulness of the Association Propranolol-Corticosteroids.”. European Journal of Pediatric Dermatology 22 (4):288 -89. https://www.ejpd.com/index.php/journal/article/view/811.