Expert commentators

Advice

The following clinicians contributed to this briefing:

Dr Jeremy Charlton, consultant anaesthetist, Harrogate and District NHS Foundation Trust. Did not declare any interests.
Dr Ewa Werpachowska, consultant anaesthetist, University Hospitals Coventry and Warwickshire NHS Trust. Did not declare any interests.
Dr Mathias Chinyandura, consultant anaesthetist, Leeds Teaching Hospitals NHS Trust. Did not declare any interests.
Dr Mark Porter, consultant anaesthetist, University Hospitals Coventry and Warwickshire NHS Trust. Did not declare any interests.
Dr Duncan Farquhar-Thomson, consultant anaesthetist, Dorset County Hospital NHS Trust. Did not declare any interests.