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Authors
Ballhause, Tobias M. http://orcid.org/0000-0003-2297-7819
Moritz, Menard
Hättich, Annika
Stücker, Ralf
Mladenov, Kiril
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Article History
Received: 17 April 2019
Accepted: 8 November 2019
First Online: 20 November 2019
Ethics approval and consent to participate
: Our institutions do not require ethical approval for reporting retrospective case series data.
: Written informed consent for publication was obtained from the patient’s parents, for their children’s anonymized information to be published in this article.
: The authors declare that they have no competing interests.
