http://orcid.org/0000-0001-8225-7288Rachael Dawson, Phil Dykes Paediatric Emergency, Nottingham University Hospitals NHS Trust, Nottingham, UK Correspondence to Dr Rachael Dawson, Paediatric Emergency, Nottingham University Hospitals NHS Trust, Nottingham NG7 2UH, UK; rachael.dawson{at}doctors.org.uk Statistics from Altmetric.com Request Permissions If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink...