Funding for this research was provided by:
Niedersächsisches Landesamt für Soziales, Familie und Jugend (n.a.)
Article History
Received: 5 July 2018
Accepted: 9 January 2019
First Online: 21 January 2019
Ethics approval and consent to participate
: This study did not involve patient data. All participants gave written informed consent. The local research ethics committee approved the study protocol (Research ethics committee, University Medical Center Göttingen, Statement 5/9/12).
: Not applicable.
: The authors declare that they have no competing interests.
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