Accepted: 18 January 2021
First Online: 3 February 2021
Compliance with Ethical Standards
: This study received ethical approval from the University of Bath research ethics committee and the Oxford A NHS Research Ethics Committee. ED staffinitially approached potentially eligible families to ask whether they would agree to be contacted by a member of the research team for further information.
: The authors also completed a form to confirm that they have no conflicts of interest.
: After receiving this information, if the family wanted to take part, informed consent and assent were obtained from parent and child prior to theirparticipation.