1 University Hospital Center Rijeka, Department of Otorhinolaryngology and Head and Neck Surgery, Rijeka, Croatia.
2 University Hospital Center Sestre Milosrdnice, Department of Otorhinolaryngology and Head and Neck Surgery, Zagreb, Croatia; University of Zagreb, School of Medicine, Zagreb, Croatia. Electronic address: andro.kosec@yahoo.com.
3 University Hospital Center Sestre Milosrdnice, Department of Otorhinolaryngology and Head and Neck Surgery, Zagreb, Croatia; University of Zagreb, School of Medicine, Zagreb, Croatia.