Torbus-Paluszczak, Magdalena http://orcid.org/0000-0002-9370-9806
Bartman, Wojciech
Adamczyk-Sowa, Monika
Article History
Received: 17 January 2018
Accepted: 5 July 2018
First Online: 30 July 2018
Compliance with ethical standards
:
: The authors declare that they have no competing interests.