Funding for this research was provided by:
Programme Grants for Applied Research (RP-PG-0608-10018)
Received: 5 April 2017
Accepted: 24 January 2018
First Online: 5 February 2018
Ethics approval and consent to participate
: The study was approved by the South West Central Bristol Research Ethics Committee, UK (reference number: 10/H0102/54) and research governance approvals were obtained for all areas prior to the start of recruitment. The study was sponsored by the University of Bristol, which ensured the study met all regulatory approvals. All participants’ parent or legal carers gave written, informed consent on behalf of the child. All children aged 11 and over gave informed assent.
: Not applicable.
: The authors declare that they have no competing interests.
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