1. Istituti Clinici Scientifici Maugeri IRCCS, Directorate of Telese Terme Institute, 82037 Telese Terme, Italy
2. Istituti Clinici Scientifici Maugeri IRCCS, Pulmonary Rehabilitation Unit of Telese Terme Institute, 82037 Telese Terme, Italy
3. Fleming Clinical Laboratory, 81020 Casapulla, Italy
4. Department of Advanced Biomedical Sciences, Federico II University, 80131 Naples, Italy
5. Department of Clinical Medicine and Surgery, Federico II University, 80131 Naples, Italy