1. Department of Medical and Surgical Sciences, Institute of Respiratory DiseasesUniversity Hospital “Ospedali Riuniti” of Foggia, University of Foggia Foggia Italy
2. Department of PediatricsIRCCS "Casa Sollievo della Sofferenza" Hospital San Giovanni Rotondo Foggia Italy
3. Unit of Interventional and Diagnostic Ultrasound of Internal MedicineIRCCS “Casa Sollievo della Sofferenza” Hospital San Giovanni Rotondo Foggia Italy