Downarowicz, Dorota http://orcid.org/0000-0003-3693-0659
Kowalski, Krzysztof
Article History
Received: 1 July 2019
Accepted: 23 December 2019
First Online: 3 January 2020
Compliance with ethical standards
:
: On behalf of all authors, the corresponding author states that there is no conflict of interest.