Pieper, Dawid
Kotte, Nina
Ober, Peggy
Article History
Received: 6 September 2017
Accepted: 24 July 2018
First Online: 16 August 2018
Ethics approval and consent to participate
: The Institutional Review Board of Witten/Herdecke University approved the study and waived the requirement for a signed consent form. Instead, participants were given a study information sheet that included all information typically included in a consent form. Return of partially or fully completed surveys was considered to imply agreeing to participate in the study, and consent to use the data.
: Not applicable.
: The authors declare that they have no competing interests.
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