1 | Yüzüncü Yıl University Faculty of Medicine, Department of Otorhinolaryngology, Van, Turkey |
2 | Yüzüncü Yıl University Faculty of Medicine, Department of Pathology, Van, Turkey |
3 | Özalp Training Hospital, Clinic of Pediatric Diseases, Van, Turkey |
4 | Yüzüncü Yıl University Faculty of Medicine, Department of Pediatric Heamathology, Van, Turkey |