Received: 10 November 2017
Accepted: 22 May 2019
First Online: 31 May 2019
Ethics approval and consent to participate
: The study was approved by the ethics committee of the University of Muenster and the Medical Association of North Rhine-Westfalia (reference-number 2010–225-f-S). All participants were informed that they participate in a new educational approach, but neither about the distinct study methods and purpose, nor about group allocation. In accordance with the ethic committee approval, information about the distinct study purpose and written informed consent was given after completed data collection.
: Not applicable.
: The authors declare that they have no competing interests.