1. Division of Immunology and Allergy, Department of Chest Diseases, School of Medicine, Ankara University, Ankara, Turkey
2. Department of Health Care Management, Faculty of Medical Sciences, Baskent University, Ankara, Turkey
3. Department of Chest Diseases, School of Medicine, Ege University, Izmir, Turkey
4. Department of Pulmonary Diseases, Cerrahpaşa Faculty of Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkey
5. School of Medicine, Gazi University, Ankara, Turkey
6. Department of Family Medicine, School of Medicine, Baskent University, Ankara, Turkey
7. Department of Chest Diseases, School of Medicine, Dr. Suat Günsel University of Kyrenia Hospital, Kyrenia, Cyprus
8. Department of Chest Diseases, School of Medicine, Celal Bayar University, Manisa, Turkey