1. Dermatology Unit Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Milan Italy
2. Department of Pathophysiology and Transplantation Università Degli Studi di Milano Milan Italy
3. Pediatric Dermatology Unit, Department of Clinical Sciences and Community Health Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Milan Italy