1. Department of Otorhinolaryngology Dokuz Eylul University Medical School Izmir Turkey
2. Department of Medical Pharmacology Dokuz Eylul University Medical School Izmir Turkey
3. Department of Biostatistics and Informatics Dokuz Eylul University Medical School Izmir Turkey
4. Department of Rheumatology and Immunology Dokuz Eylul University Medical School Izmir Turkey