1. Department of Information Technology, Faculty of Informatics, University of DebrecenKassai út 26, H-4028 Debrecen, Hungary, e-mail: 1garai.abel@inf.unideb.hu2pentek.istvan@inf.unideb.hu3adamko.attila@inf.unideb.hu
2. Department of Pulmonology, 2nd Pediatrics Clinic, Semmelweis UniversityTűzoltó u. 7–9, H-1094 Budapest, Hungary, e-mail: nemeth.agnes1@med.semmelweis-univ.hu