The following clinicians contributed to this briefing:
Richard Body, professor/honorary consultant in emergency medicine, University of Manchester/Manchester University NHS Foundation Trust. Director of the Diagnostics & Technology Accelerator (DiTA).
Anne Dawnay, consultant clinical biochemist, clinical biochemistry, Barts Health NHS Trust. Did not declare any interests.
Maurice O'Kane, consultant chemical pathologist, Western Health and Social Care Trust. Did not declare any interests.