1. ENT Department, Bucharest Emergency University Hospital, 010271 Bucharest, Romania
2. Department of Anatomy, ‘Carol Davila’ University of Medicine and Pharmacy, 050474 Bucharest, Romania
3. ENT Department, T�rgu Mureș University of Medicine and Pharmacy, 540139 T�rgu Mureș, Romania
4. ENT Department, ‘S�nta Maria’ Clinical Hospital, 011172 Bucharest, Romania
5. Department of Anesthesia and ICU, Bucharest Emergency University Hospital, 020021 Bucharest, Romania