Funding for this research was provided by:
Policy Research Programme, Department of Health (UK (006/0060)
Text and Data Mining valid from 2018-01-24
Received: 22 June 2017
Accepted: 11 January 2018
First Online: 24 January 2018
Ethics approval and consent to participate
: This work formed part of the Building Blocks Trial. The Building Blocks trial was approved by the Wales NHS Research Ethics Committee (09/MRE09/08) and received governance approval from all participants sited. The trial is registered with International Standard Randomised Control Trial Number ISRCTN23019866.
: Not applicable
: The authors declare that they have no competing interests.
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