Wendland, Natalia
Opydo-Szymaczek, Justyna http://orcid.org/0000-0001-5091-3316
Mizgier, Małgorzata
Jarząbek-Bielecka, Grażyna
Funding for this research was provided by:
Uniwersytet Medyczny im. Karola Marcinkowskiego w Poznaniu (502-14-22073190-1014)
Article History
Received: 18 April 2020
Accepted: 8 July 2020
First Online: 10 August 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in the study were in accordance with the 1964 Helsinki declaration and its later amendments. The research project was approved by the Bioethics Committee at the Poznan University of Medical Sciences (resolution no. 536/18).
: All patients and their parents gave written informed consent for participation in the study.