Porażka, Joanna
Szałek, Edyta
Żółtaszek, Wojciech
Grabowski, Tomasz
Wolc, Anna
Grześkowiak, Edmund
Article History
Received: 12 July 2019
Revised: 19 September 2019
Accepted: 11 October 2019
First Online: 8 January 2020
Compliance with ethical standards
:
: The authors declare that there is no conflict of interest.
: The study was carried out in accordance with the Declaration of Helsinki and the study protocol was approved by the local Bioethics Committee of the Poznan University of Medical Sciences.