Authors: Naomi Meardon, BMedSci (Hons), MBChB, core trainee year 1 in medicine, Chesterfield Royal Hospital, UK Shireen Siddiqui, MBChB, MRCGP, DFSRH, DRCOG, general practitioner, London, UK Elena Del Vescovo, BMedSci (Hons), MBChB, speciality trainee year 2 in radiology, Royal Infirmary of Edinburgh, NHS Lothian, UK Editors: Lucy C. Peart, BSc, MBChB, MRCP, PgDip, speciality registrar acute medicine, Sheffield Teaching Hospitals, UK Sherif Hemaya, MB BCh, FCEM, emergency medicine consultant, Northern General Hospital, Sheffield Teaching Hospitals NHS Foundation Trust, UK Editorial Advisor: Alan Fletcher, BMedSci (Hons), MBChB, MRCPath (Affiliate), FRCP (Edin), FCEM, consultant in emergency medicine and acute medicine, Sheffield Teaching Hospitals NHS Foundation Trust, UK
