Statistics from Altmetric.com
Contributors TM conceived the question; PMR drafted the manuscript; PMR and TM edited and approved the final submission.
Funding No funding was sought for this study.
Competing interests None declared.
Patient consent for publication Not required.
Provenance and peer review Not commissioned; externally peer reviewed.
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.