[1] Kadikoy Florence Nightingale Hosp, Istanbul, Turkey
[2] Dokuz Eylul Univ, Sch Med, Dept Pulm Med, Izmir, Turkey
[3] Yeditepe Univ, Sch Med, Dept Pulm Med, Istanbul, Turkey
[4] Istanbul Bilgi Univ, Fac Hlth Sci, Istanbul, Turkey
[5] Adana City Educ & Training Hosp, Dept Chest Med, Adana, Turkey
[6] Kusadast State Hosp, Aydin, Turkey
[7] Uludag Univ, Sch Med, Dept Pulm Med, Bursa, Turkey
[8] Dept Chest Dis, Med Plaza, Ankara, Turkey
[9] Marmara Med Fac, Istanbul, Turkey