Vargova, K
Pesta, M
Obrtlikova, P
Dusilkova, N
Minarik, L
Vargova, J
Berkova, A
Zemanova, Z
Michalova, K
Spacek, M
Trneny, M
Stopka, T
Article History
First Online: 21 July 2017
Competing interests
: The authors declare no conflict of interest.