1. Department of Pharmacology, Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia.
2. Medical Center “Bezanijska kosa,” Belgrade, Serbia.
3. High Medical School “Milutin Milanković,” Belgrade, Serbia.
4. Institute of Epidemiology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia.
5. Faculty of Medicine, University of Belgrade, Belgrade, Serbia.