Beer-Lech, Karolina http://orcid.org/0000-0003-1679-8785
Surowska, Barbara http://orcid.org/0000-0002-4434-6367
Pałka, Krzysztof http://orcid.org/0000-0003-4920-4613
Walczak, Mariusz http://orcid.org/0000-0001-6728-9134
Article History
First Online: 24 October 2019
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.