1. Department of Basic Medical Sciences, Neuroscience and Sense Organs, Section of Respiratory Disease, University “Aldo Moro” of Bari, Bari, Italy.
2. Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy.
3. Institute of Respiratory Diseases, Department of Medical and Surgical Sciences, University Hospital Policlinico Riuniti, Foggia, Italy.
4. Clinical Pathology Department, University Hospital Policlinico Riuniti, Foggia, Italy.