1. Clinic for Otorhinolaryngology and Maxillofacial Surgery, Clinical Center of Serbia, Belgrade, Serbia
2. Department of Otorhinolaryngology and Maxillofacial Surgery, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
3. Department of Pharmacology, Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
4. Faculty of Medicine, University of Belgrade, Belgrade, Serbia
5. Clinic of Maxillofacial Surgery, Sechenov University, Moscow, Russia
6. Hospital for ENT, KBC DragišaMišović, Belgrade, Serbia
7. General hospital “Djorđe Jovanović”, Zrenjanin, Serbia
8. Division of Nephrology & Hypertension, Mayo Clinic, Rochester, MN, USA
9. Department of Biostatistics, Medical Faculty, University of Belgrade, Belgrade, Serbia