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Authors
Burggraf, Manuel http://orcid.org/0000-0002-6191-7360
Polan, Christina
Husen, Martin
Mester, Bastian
Wegner, Alexander
Spodeck, Daniel
Dudda, Marcel
Kauther, Max Daniel
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Article History
Received: 31 March 2020
Accepted: 22 April 2020
First Online: 6 May 2020
Ethics approval and consent to participate
: The study was performed in accordance with the Declaration of Helsinki and approved by the relevant local ethics committee (reference 12-5120-BO). The parents and/or legal guardians provided informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
