1. Department of Internal Medicine, General Hospital Kraljevo, Kraljevo , Serbia
2. Department of Psychiatry, Faculty of Medical Sciences, University of Kragujevac, Kragujevac , Serbia
3. Psychiatry Clinic , Clinical Center Kragujevac, Kragujevac , Serbia
4. Department of Internal medicine, Faculty of Medical Sciences, University of Kragujevac, Kragujevac , Serbia
5. Internal Clinic, Department of Rheumathology, Clinical Center Kragujevac, Kragujevac , Serbia