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Handling editor Ellen J Weber
Collaborators TERN Collaborative. Writing committee: Southmead Hospital, Bristol (Tom Roberts, Sara Qandil, Edward Carlton); Bristol Children’s Hospital, Bristol (Robert Hirst). Local collaborators: Addenbrookes Hospital, Cambridge (Susie Hardwick, Mariam Imam, Jo Sumpter); The Alexandra Hospital, Worcester (Karen Jones, Jennifer Hardy); Bristol Royal Infirmary, Bristol (Andy Lockyer, Carl Robinson); Chelsea and Westminster Hospital, London (Fiqry Fadhlillah, Mun Kiong Lim); Colchester General Hospital, Colchester (Rupa Chatterjee, Ooi Huah Chiang, Jose Morales Kohlmann, Jhalakkumar Patel, Antoine Maurice Ayoub, Ernest Isokpehi, Mattia Kolletzek); Leeds General Infirmary, Leeds (Sundararaj Manou); Manchester Royal Infirmary, Manchester (Mark Brown, Charlie Reynard); Queens Medical Centre, Nottingham (Stephen Ojo); Royal Infirmary of Edinburgh, Edinburgh (Rajesh Chatha, Rory Anderson); Royal Liverpool University Hospital, Liverpool (Wojciech Sawicki, Terry McLoughlin, John Paul Gilbert); Northampton General Hospital, Northampton (Aiden Pettet, Sophie Guilfoyle, Michelle Spinks); Northern Care Alliance, Salford (Cameron Stocks, Reece Doonan, Michael Angiy); Northwick Park, London (Ines Corcuera); Southmead Hospital, Bristol (Lara Jenner, Fraser Birse, Callum Taylor, Darshni Pandya, Connor Moore, Ysabelle Thackray); St George's Hospital, London (Sean Dillane); University College London Hospitals, London (Emma McLean, James Harnett, Gregor Cameron, Gregory Gibson); University Hospitals Coventry and Warwickshire NHS Trust, Coventry (Caroline Leech); University Hospital Southampton, Southampton (Elizabeth Frost, Daniel Jackman, Nigel McCoy, Shoura Karar, William Nevard, Shauna Marshall); West Middlesex University Hospital, Isleworth (Sangeetha Saunder, Faisal Akbar, Faryal Amir, Joy Inns, Mirasol Laureta, Mirwais Daulatzai, Praveen Kumar Papala, Vilavan Koompirochana); Wythenshawe Hospital, Manchester (Chris Wheeler).
Contributors The members of the writing committee (Tom Roberts, Robert Hirst, Sara Qandil, Edward Carlton) assume responsibility for the overall content and integrity of this article. TR and EC conceived the idea for this study. SQ produced drafts of original protocol. TR was responsible for the data collection, ethical approval and analysis. RH coordinated the study and liaised with recruiting sites. TERN collaborators collected data at each site.
Funding Royal College of Emergency Medicine provides funding for the Trainee Emergency Research Network (TERN).
Competing interests None declared.
Provenance and peer review Not commissioned; externally peer reviewed.
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