Name	Info	Provider	Link
	subscription/membership/fee required	Nature Publishing Group	https://doi.org/10.1038/nature25761
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/29493588/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/29493588
	free resource	scite Smart Citations	https://scite.ai/reports/29493588
	free resource	Spiral, Imperial College Digital Repository	http://hdl.handle.net/10044/1/60382