Wolny-Koładka, Katarzyna http://orcid.org/0000-0003-2994-8842
Żukowski, Witold http://orcid.org/0000-0002-1898-1236
Article History
Received: 14 April 2017
Accepted: 19 September 2017
First Online: 23 September 2017
Compliance with Ethical Standards
:
: The authors declare no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.