Vogel, Daniela
Meyer, Marco
Harendza, Sigrid
Article History
Received: 3 January 2018
Accepted: 18 June 2018
First Online: 3 July 2018
Ethics approval and consent to participate
: The study was performed in accordance with the Declaration of Helsinki and Ethics Committee of the Chamber of Physicians approval (PV3649). Participation was voluntary, anonymized and with written consent.
: Not applicable.
: SH has a position as Section Editor to BMC Medical Education. DV and MM declare that they have no competing interests.
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