Affiliation: | 1. Department of Otorhinolaryngology, Rhinology Unit, Faculty of Medicine, Military Medical Academy, Belgrade, Serbia;2. Department of Otorhinolaryngology, Stavanger University Hospital, Stavanger, Norway;3. Institute for Pharmacy, Faculty of Medicine, Military Medical Academy, Belgrade, Serbia;4. Institute for Medical Research, Division of Clinical and Experimental Immunology, Faculty of Medicine, Military Medical Academy, Belgrade, Serbia |