1. Department of Diagnostic and Public Health University of Verona Strada Le Grazie 8 37134 Verona Italy
2. Department of Biotechnology University of Verona Strada Le Grazie 15 37134 Verona Italy
3. Department of Medicine University of Verona Strada Le Grazie 8 37134 Verona Italy
4. Cystic Fibrosis Regional Center AOUI Verona Verona Italy