1. Department of Pediatrics, Democritus University of Thrace Faculty Medicine, University General Hospital of Alexandroupolis, 68 100 Alexandroupolis, Thrace, Greece
2. Department of Radiology and Medical Imaging, Democritus University of Thrace Faculty Medicine, University General Hospital of Alexandroupolis, 68 100 Alexandroupolis, Thrace, Greece
3. Department of Otorhinolaryngology, Head and Neck Surgery, Democritus University of Thrace Faculty Medicine, University General Hospital of Alexandroupolis, 68 100 Alexandroupolis, Thrace, Greece