Beke, David http://orcid.org/0000-0001-6046-8164
Károlyházy, Gyula
Czigány, Zsolt
Bortel, Gábor
Kamarás, Katalin http://orcid.org/0000-0002-0390-3331
Gali, Adam http://orcid.org/0000-0002-3339-5470
Article History
Received: 20 April 2017
Accepted: 14 August 2017
First Online: 6 September 2017
Competing Interests
: The authors declare that they have no competing interests.