Porażka, Joanna http://orcid.org/0000-0003-0171-7532
Szałek, Edyta
Połom, Wojciech
Czajkowski, Mateusz
Grabowski, Tomasz
Matuszewski, Marcin
Grześkowiak, Edmund
Article History
First Online: 18 February 2019
Compliance with Ethical Standards
:
: No source of funding.
: Joanna Porażka, Edyta Szałek, Wojciech Połom, Mateusz Czajkowski, Tomasz Grabowski, Marcin Matuszewski, Edmund Grześkowiak have no confict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments and approved by the by the local ethics committee at the Medical University of Gdańsk (NKBBN/73/2017).
: Written informed consent was obtained from all patients participating in the study.