1. ENT Department, Emergency University Hospital, 010271 Bucharest, Romania
2. Department of Pathology, ‘Carol Davila’ University of Medicine and Pharmacy, 020021 Bucharest, Romania
3. Department of Cardiovascular Surgery, ‘Prof. Dr. Agrippa Ionescu’ Emergency Clinical Hospital, 011356 Bucharest, Romania
4. Clinical and Hearing Aid Department, ‘Carol Davila’ University of Medicine and Pharmacy, 050474 Bucharest, Romania