[1] Institute of Respiratory Disease,Department of Medical and Occupational Sciences
[2] Faculty of Medicine,Department of Clinical Pathology
[3] University of Foggia,Department of Medical Sciences
[4] III Laboratory of Analysis,Department of Thoracic Surgery
[5] Riuniti Hospital Foggia,undefined
[6] Section of Hygiene,undefined
[7] Faculty of Medicine,undefined
[8] University of Foggia,undefined
[9] Apulia Regional Epidemiological Observatory,undefined
[10] Case di Cura Riunite,undefined
[11] La Madonnina,undefined