1. Pulmonology Department, General Hospital of Thessaloniki “G. Papanikolaou”, Thessaloniki, Greece
2. Laboratory of Hygiene, Social & Preventive Medicine and Medical Statistics, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
3. Division of Immunology, Immunity to Infection and Respiratory Medicine, School of Biological Sciences, The University of Manchester; North West Lung Centre, Wythenshawe Hospital, Manchester Academic Health Science Centre, Manchester University NHS Foundation Trust, Manchester, UK
4. Laboratory of Experimental Physiology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
5. Internal Medicine Department, General Hospital of Thessaloniki “G. Papanikolaou”, Thessaloniki, Greece
6. Evosmos Primary Healthcare Center, Thessaloniki, Greece
7. School of Health Sciences, University of Western Macedonia, Kozani, Greece