1. University of Novi Sad, Faculty of Medicine, Novi Sad, Serbia + Institute of Public Health of Vojvodina, Center for Analysis, Planning and Organization of Health Care, Novi Sad, Serbia
2. University of Novi Sad, Faculty of Medicine, Novi Sad, Serbia + Institute of Public Health of Vojvodina, Center for Informatics and Biostatistics, Novi Sad, Serbia
3. Institute of Public Health of Vojvodina, Center for Analysis, Planning and Organization of Health Care, Novi Sad, Serbia
4. University of Novi Sad, Faculty of Medicine, Novi Sad, Serbia + Institute of Public Health of Vojvodina, Center for Health Promotion, Novi Sad, Serbia