Text and Data Mining valid from 2018-12-01
Received: 10 October 2017
Accepted: 14 November 2018
First Online: 3 December 2018
Ethics approval and consent to participate
: The study was approved by the Freiburg Ethics Commission International. All patients gave written informed consent to take part in this study.
: Not applicable.
: The authors declare that they have no competing interests. EP received grants as consultant and as speaker for Trommsdorff.
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