Affiliation: | 1. Department of Pulmonary Medicine, Gazi University School of Medicine, Ankara, Turkey;2. Department of Pulmonary Medicine, Turgut Ozal University, Ankara, Turkey;3. Department of Biochemistry, Cerrahpasa School of Medicine, Istanbul University, Istanbul, Turkey;4. Department of Pulmonary Medicine, Ordu University School of Medicine, Ordu, Turkey;5. Department of Pulmonary Medicine, Ataturk Chest Disease and Chest Surgery Research and Education Hospital, Konya, Turkey;6. Department of Pulmonary Medicine, Hakkari State Hospital, Hakkari, Turkey;7. Department of Internal Medicine, Tatvan State Hospital, Bitlis, Turkey |