Pál, Ildikó
Illés, Árpád
Váróczy, László
Article History
Received: 16 February 2018
Accepted: 29 October 2018
First Online: 7 November 2018
Compliance with Ethical Standards
:
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.