Statistics from Altmetric.com
Contributors All of the authors contributed to the planning and writing of this manuscript. JW and AB designed the artwork presented in the figures. All of the authors have seen and approved the original and revised versions of this manuscript.
Competing interests None declared.
Provenance and peer review 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.