Purchart, Luboš http://orcid.org/0000-0001-9958-2300
Hula, Vladimír http://orcid.org/0000-0001-7023-7087
Fric, Zdeněk Faltýnek http://orcid.org/0000-0002-3611-8022
Article History
Received: 29 January 2020
Accepted: 18 June 2020
First Online: 10 July 2020
Compliance with ethical standards
:
: There is no conflict of interest.