Funding for this research was provided by:
NIHR Collaboration for Leadership in Applied Health Research and Care (CLAHRC) East of England (PPI-04)
Text and Data Mining valid from 2018-10-29
Received: 25 April 2018
Accepted: 7 September 2018
First Online: 29 October 2018
Ethics approval and consent to participate
: Ethics approval was granted in October 2014 by NRES committee London - City and East. NREs 14/LO/1775.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.