Funding for this research was provided by:
National Institute of Health Research UK (129848)
Accepted: 21 May 2022
First Online: 22 June 2022
: BF has received honoraria from Middlesex University and Queen Mary University of London, is a member of the Cochrane Collaboration Group and the Deputy Chair for the Advanced Practitioner in Critical Care Professional Advisory Group of the Intensive Care Society. RH has received grants from Wellcome, Health Data Research UK, and UK Research and Innovation. RP has received honoraria and/or research grants from Edwards Lifesciences, Intersurgical and GlaxoSmithKline.
: PROSPERO CRD42020172978.