1. From Bering Limited, 54 Portland Place, 2nd Floor, London W1B 1DY, England (I.D., R.D., B.S.); Emergency Department (J.D., D.G., N.H., A.S., S.R., D.J.L.) and Department of Radiology (R.G., S.P., M.H.), Queen Elizabeth University Hospital, Glasgow, Scotland; and Institute of Health and Wellbeing, University of Glasgow, Glasgow, Scotland (D.J.L.).