Knapik, Piotr https://orcid.org/0000-0002-1058-1502
Trejnowska, Ewa
Knapik, Małgorzata
Skoczyński, Szymon
Cyprys, Paweł
Cieśla, Daniel
Article History
Accepted: 17 June 2019
First Online: 27 June 2019
Compliance with ethical standards
:
: On behalf of all authors, the corresponding author states that there is no conflict of interest.