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Authors
Kölle, Theresa
Alt, Wilfried
Wagner, Daniel
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Article History
Received: 25 October 2019
First Online: 27 February 2020
Compliance with ethical standards
:
: All authors declare that they have no conflict of interest.
: The study protocol was approved by the Institutional Review Boards of the authors’ affiliated institutions. All measurements within in the study are based on the Declaration of Helsinki.
: Informed consent was obtained from all individual participants included in the study.
