Funding for this research was provided by:
Technology Agency of the Czech Republic (TL02000164)
Agentúra na Podporu Výskumu a Vývoja (APVV-19-0493)
Received: 31 October 2020
Accepted: 28 January 2021
First Online: 12 February 2021
Ethics approval and consent to participate
: The Ethics Committee of the Social Health Institute at Palacky University Olomouc approved the study (reference number 2018/09 at December 2019). All participants signed informed consent.
: The authors declare that they have no competing interests.