Welna, Maja
Pohl, Pawel
Szymczycha-Madeja, Anna
Article History
Received: 27 August 2018
Accepted: 21 October 2018
First Online: 29 October 2018
Compliance with Ethical Standards
:
: Maja Welna declares that she has no conflict of interest. Pawel Pohl declares that he has no conflict of interest. Anna Szymczycha-Madeja declares that she has no conflict of interest.
: This article does not contain any studies with human or animal subjects performed by any of the authors.
: Not applicable.