Name	Info	Provider	Link
	free resource	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S1473-3099(19)30446-3
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/31519541/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/31519541
	free resource	Spiral, Imperial College Digital Repository	http://hdl.handle.net/10044/1/72838
Full text from	free resource	White Rose Research Online	https://eprints.whiterose.ac.uk/151057/