Funding for this research was provided by:
Division of Health Sciences, University of Otago
Received: 31 May 2018
Accepted: 25 April 2019
First Online: 21 June 2019
Ethics approval and consent to participate
: Ethical approval and participant consent is not applicable to this review.
: Not applicable.
: Author Tim Wilkinson is a member of the BMC Medical Education Editorial Board. The authors declare no further competing interests between the article and other individual or workplace interests. This article has not been published or presented elsewhere.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.