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Authors
Schmalbach, Bjarne https://orcid.org/0000-0001-6853-412X
Zenger, Markus
Brähler, Elmar
Petrowski, Katja
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Article History
Received: 31 August 2018
Accepted: 17 February 2020
First Online: 2 March 2020
Ethics approval and consent to participate
: The present study was conducted in accordance with the Declaration of Helsinki. The study was approved by the ethics committee of the University of Leipzig (ref. 297/16-ek). Participants gave their written and verbal informed consent before they were allowed to participate in the study. Participants under the age of 18 were not recruited.
: Not applicable.
: The authors declare that they have no competing interests.
