Funding for this research was provided by:
Seventh Framework Programme (602150)
Received: 7 September 2020
Accepted: 3 November 2020
First Online: 23 February 2021
Ethics approval and consent to participate
: In each recruiting site ethical approval was given; an overview is available online (ExternalRef removed).
: Not applicable.
: AIRM declares consulting fees from PresSura Neuro, Integra Life Sciences, and NeuroTrauma Sciences. DKM reports grants from the UK National Institute for Health Research, during the conduct of the study; grants, personal fees, and non-financial support from GlaxoSmithKline; personal fees from Neurotrauma Sciences, Lantmaanen AB, Pressura, and Pfizer, outside of the submitted work. WP reports grants from the Netherlands Brain Foundation. ES reports personal fees from Springer, during the conduct of the study. All other authors declare no competing interests.