Statistics from Altmetric.com
Contributors DB and RD: study design, drafting and revising the manuscript. CD and JS: data collection, critical comments during manuscript revision. KM: data collection, drafting and revising the manuscript. OG and RM: critical comments during manuscript revision.
Competing interests None.
Provenance and peer review Not commissioned; externally peer reviewed. This paper was reviewed by Jackie Palace, Oxford, UK, and Seth Love, Bristol, UK.
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.