1. Institute of Dermatology Fondazione IRCCS Policlinico San Matteo Pavia Italy
2. Department of Clinical, Surgical, Diagnostic and Pediatric Sciences Università degli Studi di Pavia Pavia Italy
3. Department of Pediatrics Fondazione IRCCS Policlinico San Matteo Pavia Italy
4. Laboratory of Immuno‐ Allergology of Clinical Chemistry and Pediatric Clinic Fondazione IRCCS Policlinico San Matteo Pavia Italy
5. Division of Hematology Fondazione IRCCS Policlinico San Matteo Pavia Italy
6. Department of Molecular Medicine University of Pavia Pavia Italy
7. Anatomy Pathology Section Fondazione IRCCS Policlinico San Matteo Pavia Italy