Funding for this research was provided by:
Medical Research Foundation (MR/T002980/1)
Article History
Received: 17 September 2019
Accepted: 29 January 2020
First Online: 6 February 2020
Ethics approval and consent to participate
: This study has a favourable ethical opinion from the Proportionate University Research Ethics Committee (ref. 2019-7862-11813) of the University of Manchester.
: Not applicable.
: The authors declare that they have no competing interests.