Funding for this research was provided by:
Medical Research Council (MC_UU_00002/6, MR/N028171/1)
Cancer Research UK (C22436/A15958)
Article History
Received: 12 March 2019
Accepted: 15 July 2019
First Online: 2 August 2019
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.