Hrčková, Lucia http://orcid.org/0000-0003-3007-6105
Balážová, Mária
Országhová, Zlatica
Baláž, Michal
Funding for this research was provided by:
Univerzita Komensk?ho v Bratislave (UK/358/2018)
Article History
Received: 10 October 2018
Accepted: 27 January 2019
First Online: 25 February 2019
Compliance with ethical standards
: Our work was in accordance with the ethical standards and complied with laws of the Slovak republic.
: All the authors listed have approved this manuscript and worked equally and there is no conflict of interest to publish this manuscript.