Bartoš, Luděk
Bartošová, Jitka
Chaloupková, Helena
Dušek, Adam
Hradecká, Lenka
Svobodová, Ivona
Article History
Received: 1 July 2015
Accepted: 8 February 2016
First Online: 26 February 2016
Competing interests
: The authors declare no competing financial interests.