1. Department of Otorhinolaryngology, Military Medical Academy Faculty of Medicine University of Defence Belgrade Serbia
2. MediGroup General Hospital Belgrade Serbia
3. Department of Pharmacokinetics and Clinical Pharmacy, Faculty of Pharmacy University in Belgrade Belgrade Serbia
4. Clinical Center of Serbia, School of Medicine University in Belgrade Belgrade Serbia
5. Institute for Pharmacy, Military Medical Academy Faculty of Medicine University of Defence Belgrade Serbia
6. Institute for Medical Research, Division of Clinical and Experimental Immunology, Military Medical Academy Faculty of Medicine University of Defence Belgrade Serbia