Funding for this research was provided by:
Regional Operational Program of the Lesser Poland Voivodship (RPMP.01.02.01-12-0509/16-00)
Article History
Received: 18 February 2019
Revised: 8 May 2019
Accepted: 17 June 2019
First Online: 22 June 2019
Compliance with ethical standards
:
: The authors declare that there is no conflict of interest regarding the publication of this article.