Received: 24 June 2019
Accepted: 9 October 2019
First Online: 1 November 2019
Ethics approval and consent to participate
: The University of Sydney Human Research Ethics Committee approved the study. Written consent for participation was obtained from participants to enable us to include their data from this study.
: Not applicable.
: The authors declare that they have no competing interests. Author Annette Burgess is a member of the editorial board member for BMC Medical Education. She had no editorial role in the review process of this manuscript.