Małecki, Krzysztof
Fabiś, Jarosław
Flont, Paweł
Fabiś-Strobin, Anna
Niedzielski, Kryspin
Article History
Received: 24 April 2021
Accepted: 17 August 2021
First Online: 28 August 2021
Declarations
:
: The study was approved by Polish Mother Memorial Hospital Review Board and registered on ExternalRef removed, NCT04838158, date of registration; 22/03/2021.We confirm that informed consent was obtained from a parents and/or legal guardians as participants are under 16 years. Informed consent was also obtained from all participants.We confirm that all methods were carried out in accordance with relevant guidelines and regulations.
: Not applicable.
: The authors declare that they have no competing interests.