1. Department of the High School of Health, Academy of Applied Studies Belgrade, 11000 Belgrade, Serbia
2. Department of Social Medicine, Faculty of Medical Sciences, University of Kragujevac, 34000 Kragujevac, Serbia
3. Institute for Public Health Kragujevac, 34000 Kragujevac, Serbia
4. Center for Research on Harmfull Effects of Biological and Chemical Hazards, Faculty of Medical Sciences, University of Kragujevac, 34000 Kragujevac, Serbia
5. Faculty of Political Sciences, University of Belgrade, 11000 Belgrade, Serbia
6. Institute for Emergency Medicine of Belgrade, 11000 Belgrade, Serbia
7. Faculty of Medical Sciences, University of Kragujevac, 34000 Kragujevac, Serbia
8. Health Center “Dr Milutin Ivković” Palilula, 11000 Belgrade, Serbia
9. Clinical Hospital Center Zemun, Surgery Clinic, Baromedicine Department, 11000 Belgrade, Serbia
10. Dom Zdravlja Barajevo, 11000 Belgrade, Serbia
11. Department of Epidemiology, Faculty of Medical Sciences, University of Kragujevac, 34000 Kragujevac, Serbia
12. Department of Pathophysiology, Faculty of Medical Sciences, University of Kragujevac, 34000 Kragujevac, Serbia
13. Department of Hygiene and Ecology, Faculty of Medical Sciences, University of Kragujevac, 34000 Kragujevac, Serbia