Statistics from Altmetric.com
Contributors PCG is the sole author of this paper.
Funding This study was funded by Nordic Cochrane Centre.
Competing interests PCG is a co-founder of the Cochrane Collaboration and a strong supporter of its basic principles. PCG strongly opposes Cochrane’s current direction of travel.
Provenance and peer review Not commissioned; externally peer reviewed.
Patient consent for publication Not required.
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.