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Authors
Besser, Gerold https://orcid.org/0000-0003-3168-7477
Oswald, Michaela M.
Liu, David T.
Renner, Bertold
Mueller, Christian A.
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Article History
Received: 23 October 2019
Accepted: 29 March 2020
First Online: 4 April 2020
Conflict of interest
: The authors declare that they have no conflict of interest.
: The study was conducted according to the guidelines of the Declaration of Helsinki on Biomedical Research Involving Human Subjects. The protocol was approved by the local ethics committee (EK No.: 044/2011).
: All participants provided their written informed consent.
