Funding for this research was provided by:
Agentúra Ministerstva Školstva, Vedy, Výskumu a Športu SR (VEGA 1/0782/15)
Article History
Received: 20 March 2020
Accepted: 20 August 2020
First Online: 26 August 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.