Brzobohatý, Oto
Šiler, Martin
Trojek, Jan
Chvátal, Lukáš
Karásek, Vítězslav
Paták, Aleš
Pokorná, Zuzana
Mika, Filip
Zemánek, Pavel
Article History
Received: 19 August 2014
Accepted: 6 January 2015
First Online: 29 January 2015
Competing interests
: The authors declare no competing financial interests.