Funding for this research was provided by:
Medical Research Council (https://doi.org/10.13039/N4 501100000265, MC_U130015185/MC_UU_12017/1/ MC_UU_12017/13)
Text and Data Mining valid from 2019-02-08
Received: 2 September 2018
Accepted: 31 January 2019
First Online: 8 February 2019
Ethics approval and consent to participate
: Ethic approval for the DASH study was obtained from the Multicentre Research Ethics Committee (REC number: RDLSou-620) and from local educational authorities. Written informed consents were obtained from all participants and their parents before the survey.
: Not applicable.
: The authors declare that they have no competing interests.
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