Stachowiak, Anna
Szałek, Edyta
Karbownik, Agnieszka
Łojko, Anna
Porażka, Joanna http://orcid.org/0000-0003-0171-7532
Przewoźna, Iwona
Grabowski, Tomasz
Wolc, Anna
Grześkowiak, Edmund
Article History
First Online: 5 September 2018
Compliance with Ethical Standards
:
: No source of funding.
: Anna Stachowiak, Edyta Szałek, Agnieszka Karbownik Joanna Porażka, Iwona Przewoźna, Tomasz Grabowski, Anna Wolc, Edmund Grześkowiak have no conflict of interest.
: The research was approved by the Bioethics Committee, University of Medical Sciences, Poznan, Poland (437/16). All procedures in this study were in accordance with the 1964 Helsinki declaration (and its amendments).
: Written informed consent was obtained from all patients participating in the study.