Published on in Vol 7, No 7 (2021): July
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/29942, first published
.
1 Department of Surgery & Cancer, Imperial College London, London, United Kingdom
2 Institute of Global Health Innovation, Imperial College London, London, United Kingdom
3 Department of Mathematics, Imperial College London, London, United Kingdom