Pacakova, Barbara http://orcid.org/0000-0003-0578-3406
Verhagen, Tim
Bousa, Milan
Hübner, Uwe
Vejpravova, Jana
Kalbac, Martin
Frank, Otakar
Article History
Received: 28 April 2017
Accepted: 4 August 2017
First Online: 30 August 2017
Competing Interests
: The authors declare that they have no competing interests.