Baćmaga, Małgorzata
Wyszkowska, Jadwiga
Kucharski, Jan
Funding for this research was provided by:
Scientific research was financed by the Ministry of Science and Higher Education funds for statutory activity.
Article History
Accepted: 10 July 2018
First Online: 1 September 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.