Statistics from Altmetric.com
Contributors DM developed the original survey concept and designed the initial questionnaire, helped conduct the survey and produced the first draft of this manuscript. He has implemented changes for this revised submission. KV, AW and OA helped revise the initial questionnaire, conducted data collection and contributed revisions to the first draft.
Competing interests None.
Provenance and peer review Not commissioned; internally peer reviewed.
Data sharing statement The authors are happy to provide copies of the survey data in the form of copies of the anonymised questionnaires for interested parties.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.