Wendland, Natalia
Opydo-Szymaczek, Justyna http://orcid.org/0000-0001-5091-3316
Formanowicz, Dorota
Blacha, Anna
Jarząbek-Bielecka, Grażyna
Mizgier, Małgorzata
Funding for this research was provided by:
Uniwersytet Medyczny im. Karola Marcinkowskiego w Poznaniu (502-14-22073190-1014)
Article History
Received: 4 November 2020
Accepted: 7 April 2021
First Online: 13 April 2021
Declarations
:
: All procedures performed in the study were in accordance with the 1964 Helsinki declaration and its later amendments. The research protocol was approved by the Bioethics Committee at the Poznan University of Medical Sciences (Resolution No. 536/18).
: Informed written permission was provided by all participants and parents of subjects younger than 18 years.
: Not applicable.
: The authors declare that they have no conflict of interest.