1. Department of Otorhinolaryngology and Head and Neck Surgery , University Clinical Hospital of Railway Company, “Iuliu Hatieganu” University of Medicine and Pharmacy , Cluj-Napoca , Romania
2. Department of Anatomy and Embryology , “Iuliu Hatieganu” University of Medicine and Pharmacy , Cluj-Napoca , Romania
3. Infectious Disease Clinical Hospital , “Iuliu Hatieganu” University of Medicine and Pharmacy , Cluj-Napoca , Romania
4. Department of Ophthalmology , University Clinical Hospital of Railway Company, “Iuliu Hatieganu” University of Medicine and Pharmacy , Cluj-Napoca , Romania
5. ENT Department , Bucharest University Emergency Hospital, “Carol Davila” University of Medicine and Pharmacy , Bucharest , Romania