Bucekova, Marcela
Buriova, Monika
Pekarik, Ladislav
Majtan, Viktor
Majtan, Juraj http://orcid.org/0000-0002-7268-1584
Article History
Received: 7 March 2018
Accepted: 4 June 2018
First Online: 13 June 2018
Competing Interests
: The authors declare no competing interests.