Pieper, Lucas
Wager, Julia
Zernikow, Boris
Article History
Received: 7 May 2018
Accepted: 31 August 2018
First Online: 10 September 2018
Ethics approval and consent to participate
: In this retrospective study, medical patient data were gathered from patient charts. The study including access to the patient charts was approved by the local Ethics Committee of the children’s and adolescents’ hospital Datteln.
: Not applicable.
: The authors declare that they have no competing interests.
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