Funding for this research was provided by:
Politechnika Śląska (06/060/BK18/0064)
Article History
Received: 27 July 2019
Accepted: 25 October 2019
First Online: 9 November 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Informed consent was obtained from all individual participants included in the study.