1. Istituti Clinici Scientifici Maugeri IRCCS Directorate of Telese Terme Institute Telese Terme Italy
2. Institute of Biomolecular Chemistry National Research Council Pozzuoli Italy
3. Istituti Clinici Scientifici Maugeri IRCCS Pulmonary Rehabilitation Unit of Telese Terme Institute Telese Terme Italy
4. Department of Clinical Medicine and Surgery Federico II University Naples Italy