Witek, Łukasz
Janikowski, Tomasz http://orcid.org/0000-0001-8019-288X
Gabriel, Iwona
Bodzek, Piotr
Olejek, Anita
Funding for this research was provided by:
Medical University of Silesia
Article History
Received: 6 June 2020
Accepted: 12 October 2020
First Online: 29 October 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study has been approved by the Institutional Review Board of Medical University of Silesia KNW/022/KB1/64/10. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee (include name of committee + reference number) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.