1 Department of Medicine and Surgery, Cystic Fibrosis Unit, Paediatric Clinic Pietro Barilla Children's Hospital, University of Parma, Parma, Italy. Electronic address: [email protected].
2 Department of Medicine and Surgery, Cystic Fibrosis Unit, Paediatric Clinic Pietro Barilla Children's Hospital, University of Parma, Parma, Italy.
3 Section of Radiology, Unit of Surgical Sciences, Department of Medicine and Surgery, University of Parma, Parma, Italy.