Funding for this research was provided by:
NIHR School for Primary Care Research (NA)
Text and Data Mining valid from 2020-03-07
Received: 1 August 2019
Accepted: 10 February 2020
First Online: 7 March 2020
Ethics approval and consent to participate
: Ethical approval was obtained from the London-Chelsea Health Research Authority REC (REC reference: 16/LO/0396) in January 2017. The study protocol can be found on ClinicalTrials.gov (NCT03824015).
: Not applicable.
: The authors declare that they have no competing interests.