| Affiliation: | 1. Centro per la Prevenzione e Cura del Tabagismo, Azienda Ospedaliero‐Universitaria ‘Policlinico‐V. Emanuele’, Università di Catania, Catania, Italy;2. Dipartimento di Medicina Clinica e Sperimentale, Azienda Ospedaliero‐Universitaria ‘Policlinico‐Vittorio Emanuele’, Università di Catania, Catania, Italy;3. National Research Council of Italy, Institute of Biomedicine and Molecular Immunology, Palermo, Italy;4. Department of Academic Respiratory Medicine, Hull York Medical School, Castle Hill Hospital, University of Hull, Cottingham, UK;5. Department of Internal Medicine, University of Brescia and AOU Spedali Civili, Brescia, Italy |
