1. Faculty of Medicine, Department of Psychiatry with Medical Psychology, University of Niš, Bul. dr Zorana Djindjića 81, 18000 Niš, Serbia
2. Center for Mental Health Protection, University Clinical Center Nis, Bul. dr Zorana Djindjića 48a, 18000 Niš, Serbia
3. Special Hospital for Psychiatric Diseases “Gornja Toponica”, 18202 Niš, Serbia
4. Clinic for Psychiatry, University Clinical Center Nis, Bul. dr Zorana Djindjića 48a, 18000 Niš, Serbia