Published on in Vol 21, No 6 (2019): June
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/13365, first published
.
1 National Institute for Health Research Health Protection Research Unit in Healthcare-Associated Infection and Antimicrobial Resistance, Imperial College London, London, United Kingdom
2 Jamie Firth Consultancy Ltd, London, United Kingdom