Funding for this research was provided by:
Economic and social research council (15002952)
Received: 4 February 2019
Accepted: 31 May 2019
First Online: 12 July 2019
Ethics approval and consent to participate
: Ethical approval was granted by the Research Ethics Committee London-Surrey Borders (reference 15/LO/0808). Consent to participate was written. This was a qualitative study with no intervention so is not a registered trial.
: Consent included the use of direct quotes which have been anonymized.
: The authors declare that they have no competing interests.