Funding for this research was provided by:
Bundesministerium für Bildung und Forschung (None)
Article History
Received: 19 November 2019
Accepted: 29 April 2020
First Online: 19 May 2020
Ethics approval and consent to participate
: The data acquisition procedure was approved by the local data protection authorities and the local ethics board (No. EA4–096-16, Ethics Board, Charité – Universitätsmedizin Berlin, Campus Mitte). Written consent to participate was given by the study volunteers.
: No details, images, or videos relating to an individual person are published in this paper.
: The author HP is associated editor for BMC Medical Education.