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Authors
Kovács, Attila https://orcid.org/0000-0001-8169-3547
Varga, Zoltán
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Article History
Received: 24 November 2020
Accepted: 21 December 2020
First Online: 29 January 2021
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The ethical standards have been met.
