Sarul, Michal http://orcid.org/0000-0002-2518-0007
Nahajowski, Marek
Gawin, Grzegorz
Antoszewska-Smith, Joanna http://orcid.org/0000-0001-9192-1064
Article History
Received: 2 July 2020
Accepted: 19 March 2021
First Online: 7 May 2021
Declarations
:
: M. Sarul, M. Nahajowski, G. Gawin and J. Antoszewska-Smith declare that they have no competing interests.
: The study obtained approval (no. KB-322/2014) from the bioethics committee of Wroclaw Medical University (Poland). All study participants and their care providers were given detailed information about the planned research. Written consent was obtained. The agreements for publication of processed data were collected from participants or their gardians/parents.