Funding for this research was provided by:
National Institute for Health Research (BRC-1215-20011)
Text and Data Mining valid from 2019-11-23
Received: 3 May 2019
Accepted: 1 October 2019
First Online: 23 November 2019
Ethics approval and consent to participate
: Ethical approval for this project was granted by the South West–Central Bristol Research Ethics Committee (REF reference number 18/SW/0164).
: Not applicable.
: The authors declare that they have no competing interests.