1. Clinic of Pulmonary Diseases, Middle East Technical University, Medical Center, Ankara, Turkey
2. Clinic of Pulmonary Diseases, ARTE Hekimköy Medical Center, Ankara, Turkey
3. Department of Chest Diseases, Düzce University School of Medicine, Düzce, Turkey
4. Ankara Chamber of Medical Doctors, Commission of Workers’ Health and Occupational Physicians, Ankara, Turkey
5. Department of Pulmonary Diseases, Gazi University School of Medicine, Ankara, Turkey
6. Clinic of Chest Diseases, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
7. Sleep Disorders Center, Atatürk Chest Diseases, Thoracic Surgery Training and Research Hospital, Ankara, Turkey
8. Department of Pulmonary Diseases, Bozok University School of Medicine, Yozgat, Turkey
9. Department of Pulmonary Diseases, Ordu University School of Medicine, Ordu, Turkey
10. Clinic of Child Chest Diseases, Acıbadem Fulya Hospital, İstanbul, Turkey
11. Department of Pulmonary Medicine, İstanbul University İstanbul School of Medicine, İstanbul, Turkey