1. Department of Medicine and Surgery Cystic Fibrosis Unit, Pediatric Clinic Parma Italy
2. UOSD Centro Fibrosi Cistica IRCCS Istituto Giannina Gaslini Genova Italy
3. Cystic Fibrosis Laboratory D. Lissandrini, Department of Medicine, Division of General Pathology University of Verona Verona Italy
4. Cystic Fibrosis Centre Azienda Ospedaliera Universitaria Integrata Verona Verona Italy
5. IRCCS Istituto Giannina Gaslini UOC Genetica Medica Genova Italy
6. Cystic Fibrosis Unit, Pediatric Clinics University Hospital of Parma Parma Italy
7. Department of Medicine and Surgery Respiratory Disease and Lung Function Unit Parma Italy