1. Medical Faculty of the University of Montenegro , Department of Pharmacology and Clinical Pharmacology Podgorica , Montenegro
2. Medical Faculty of the University of Montenegro , Department of Pathophysiology and Laboratory Medicine Podgorica , Montenegro
3. Medical Faculty of the University of Belgrade , Institute of Hygiene and Medical Ecology , Belgrade , Serbia
4. Institute of Public Health of Montenegro Department of Epidemiology , Podgorica Montenegro
5. Medical Faculty of the University of Montenegro , Department of Medical Ethics Podgorica , Montenegro