1. Department Ear, Nose, and Throat, Abant Izzet Baysal Universty, Izzet Baysal School of Medicine, Bolu, Turkey
2. Department Infectious Diseases and Clinical Microbiolgy, Abant Izzet Baysal Universty, Izzet Baysal School of Medicine, Bolu, Turkey
3. Department Pneumonology, Abant Izzet Baysal Universty, Izzet Baysal School of Medicine, Bolu, Turkey