Szyfter, Witold
Bartochowska, Anna http://orcid.org/0000-0001-7862-1411
Borucki, Łukasz
Maciejewski, Adrian
Kruk-Zagajewska, Aleksandra
Article History
Received: 12 February 2018
Accepted: 9 March 2018
First Online: 13 March 2018
Compliance with ethical standards
:
: All authors declare that they have no conflict of interest.
: All procedures performed in the study were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The study has been approved by the Bioethics Committee of Poznań University of Medical Sciences.