1. Faculty of Medicine, Pediatric Psychology and Psychosomatic Unit of the Department of Pediatrics, University of Debrecen, Debrecen, Hungary
2. Faculty of Informatics, Department of Applied Mathematics and Probability Theory, University of Debrecen, Debrecen, Hungary
3. Faculty of Medicine, Pediatric Psychology and Psychosomatic Unit of the Department of Pediatrics, Kálmán Laki Doctoral School, University of Debrecen, Debrecen, Hungary