1. Dermatology Unit University of Campania Luigi Vanvitelli Naples Italy
2. UO Dermatologia Lucca‐ Azienda USL Toscana Nordovest Lucca Italy
3. Pediatria Ospedale di Dolo MiranoAulss3 Venezia Italy
4. Division of Dermatology Department of Experimental, Diagnostic and Specialty Medicine University of Bologna Bologna Italy
5. Ambulatorio di Dermatologia Pediatrica Ospedale dell'Angelo VeneziaOspedale San Bortolo Vicenza Vicenza Italy