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Authors
Lewien, Christiane http://orcid.org/0000-0002-5039-0743
Genuneit, Jon
Meigen, Christof
Kiess, Wieland
Poulain, Tanja
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Article History
Received: 25 August 2020
Accepted: 31 January 2021
First Online: 16 February 2021
Ethics approval and consent to participate
: Informed written consent was obtained from all parents before participation of their children in the study. The study was conducted in compliance with the Declaration of Helsinki and in agreement with the Ethics Committee of the Medical Faculty of the University of Leipzig (Reg. No. 264-10-19,042,010).
: Not applicable.
: All authors affirm that there are no conflicts of interest.
