1. Department of Public Health, Albert Szent-Györgyi Medical School, University of Szeged, 6720 Szeged, Hungary
2. Department of Behavioural Sciences, Albert Szent-Györgyi Medical School, University of Szeged, 6720 Szeged, Hungary
3. Family Medicine Department, University of Szeged, 6725 Szeged, Hungary
4. Department of Psychiatry, Ödön Jávorszky Hospital, 2600 Vác, Hungary