Olech, Jarosław
Ciszewski, Mariusz
Morasiewicz, Piotr
Article History
Received: 21 December 2020
Accepted: 17 February 2021
First Online: 26 March 2021
Declarations
:
: The study was approved by the Bioethical Commission at the Lower Silesian Medical Chamber in Wroclaw (2/PNDR/2020). Informed consent was obtained from all the participants and also from legal guardians of the participants as pediatric patients data is taken in the study.
: Not applicable.
: The authors declare no potential conflict of interests.