Grobelny, Zbigniew http://orcid.org/0000-0002-7874-0231
Jurek-Suliga, Justyna http://orcid.org/0000-0003-4550-0490
Golba, Sylwia
Funding for this research was provided by:
University of Silesia
Article History
Received: 17 April 2019
Accepted: 10 October 2019
First Online: 20 November 2019
Compliance with ethical standards
:
: The authors declare that there is no known conflict of interest concerning the given work.