Funding for this research was provided by:
National Institute for Health Research (Not applicable)
Text and Data Mining valid from 2018-10-26
Received: 4 June 2018
Accepted: 11 October 2018
First Online: 26 October 2018
Ethics approval and consent to participate
: Not applicable.
: Not applicable. This paper contains only anonymised quotes, recorded with permission, and cannot be attributed to any individual.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.