1. Institute of Dermatology; Department of Pediatric Sciences and Human and Hereditary Pathology; University of Pavia, Fondazione IRCCS Policlinico San Matteo; Pavia Italy
2. Clinic of Haematology, Bone Marrow Transplantation Unit; University of Pavia; Fondazione IRCCS Policlinico San Matteo; Pavia Italy