Article History
Received: 22 July 2019
Accepted: 29 July 2019
First Online: 3 August 2019
Compliance with ethical standards
:
: The authors Zuzana Strizova, Jiri Vachtenheim Jr., and Jirina Bartunkova declare that there is no conflict of interest regarding the publication of this article. The manuscript has been approved for publication by all authors and is not currently under review or submitted to another journal.
: This article does not contain any studies with human participants or animals performed by any of the authors Zuzana Strizova, Jiri Vachtenheim Jr. and Jirina Bartunkova.
: Humans were not involved in the study.