1. Department of Health Informatics, Faculty of Health Sciences, University of Debrecen, 4032 Debrecen, Hungary
2. Department of Integrative Health Sciences, Faculty of Health Sciences, University of Debrecen, 4032 Debrecen, Hungary
3. Institute of Social and Sociological Sciences, Faculty of Health Sciences, University of Debrecen, 4032 Debrecen, Hungary
4. Coordinating Centre for Epidemiology, University of Debrecen Clinical Centre, 4032 Debrecen, Hungary