Funding for this research was provided by:
UK National Institute for Health Research (NIHR) through the Cambridge Biomedical Research Centre
UK Medical Research Council (MC_UU_00002/2)
Article History
Received: 28 January 2020
Accepted: 19 March 2020
First Online: 30 March 2020
Ethics approval and consent to participate
: The use of the anonymous data used in this study was approved by the Cambridge Clinical Informatics Research Data Governance Committee.
: Not applicable.
: The authors declare that they have no competing interests.