Statistics from Altmetric.com
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.
Contributors KRJ has written the first draft of the paper. SvdV has given critical remarks for revision. Both have contributed substantially to this commentary paper.
Competing interests None.
Provenance and peer review Not commissioned; internally peer reviewed.