1. Department of Clinical and Biological Sciences University of Turin Turin Italy
2. Department of Pneumology and Laboratory of Cytoimmunopathology of the Heart and Lung Istituti Clinici Scientifici Maugeri IRCCS Italy
3. Institute of Biomedicine and Molecular Immunology "A. Monroy" (IBIM) National Research Council of Italy (CNR) Palermo Italy
4. Pharma GmbH & Co. KG Boehringer Ingelheim Biberach Germany