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Article History

Received: 20 May 2018

Accepted: 3 September 2018

First Online: 15 September 2018

Ethics approval and consent to participate

: The study was approved by the local ethics committee (Ethikkommission der Medizinischen Universität Innsbruck, Innrain 43 A-6020 Innsbruck <i>No 1140/2017</i>). All participants or their parental guardians signed to agree to use data for prospective analysis, without any individual person’s data in any form (including individual details, images or videos).

: Not applicable.

: Daniel Weghuber received a grant from Takeda Medical (Osaka, Japan). All data were generated as part of routine clinical practices, and were analysed independently for the purpose of this study.All other authors declare that they have no competing interests.

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