Kerchner, András
Farkas, Ágnes http://orcid.org/0000-0002-8590-3203
Article History
Received: 20 June 2019
Accepted: 23 August 2019
First Online: 7 September 2019
Compliance with ethical standards
:
: There are no financial or other relations that could lead to a conflict of interest.
: No ethical approval was required for the preparation of this type of article.