König, I.
Weber, A.
Weber, W.
Fischer, S.
Article History
Received: 16 February 2018
Accepted: 29 March 2018
First Online: 11 May 2018
Compliance with ethical guidelines
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: I. König and A. Weber, declare that they have no competing interests. W. Weber consultancy agreement with Microvention, proctoring service Microvention. S. Fischer consultancy agreement with Microvention.
: This article does not contain any studies with human participants or animals performed by any of the authors. Consent was obtained from all patients identifiable from images or other information within the manuscript. In the case of underage patients, consent was obtained from a parent or legal guardian.