1. Clinic of Chest Diseases, Çubuk Halil Şıvgın State Hospital, Ankara, Turkey
2. Department of Chest Diseases, Ufuk University School of Medicine, Ankara, Turkey
3. Department of Chest Diseases, Near East University School of Medicine, Mersin, Turkey
4. Clinic of Chest Diseases, Denizli State Hospital, Denizli, Turkey
5. Department of Chest Diseases, Başkent University School of Medicine, Ankara, Turkey
6. Department of Chest Diseases, Düzce University School of Medicine, Düzce, Turkey
7. Department of Chest Diseases, Ordu University School of Medicine, Ordu, Turkey
8. Clinic of Chest Diseases, Kırıkhan State Hospital, Hatay, Turkey
9. Clinic of Chest Diseases, Bingöl State Hospital, Bingöl, Turkey
10. Department of Chest Diseases, Gazi University School of Medicine, Ankara, Turkey