Lotz-Havla, Amelie S.
Röschinger, Wulf
Schiergens, Katharina
Singer, Katharina
Karall, Daniela
Konstantopoulou, Vassiliki
Wortmann, Saskia B.
Maier, Esther M. http://orcid.org/0000-0002-4954-4901
Article History
Received: 28 February 2018
Accepted: 11 July 2018
First Online: 20 July 2018
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: The need for approval was waived the local ethical committees as data were collected retrospectively and reported anonymously.
: Consent for publication was provided by the parents.
: The authors declare that they have no competing interests.
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