Kobylińska, Magdalena http://orcid.org/0000-0002-3871-2412
Malak, Roksana
Majewska, Katarzyna
Kędzia, Andrzej
Samborski, Włodzimierz
Article History
Received: 19 May 2019
Accepted: 27 November 2019
First Online: 11 December 2019
Ethics approval and consent to participate
: The research was based on the consent of the Bioethical Commission at the Poznań University of Medical Science, number 1107/17 dated 9th November 2017 year.Written consent agreement was obtained before the procedure from parents or legal guardians. That informed written consent has been obtained should be clearly stated in the Ethics Approval and Consent to Participate statement.All children have given the consent for the research.
: Not appicable.
: We have no conflict of interest to declare.