Name	Info	Provider	Link
	free resource	Public Library of Science	https://dx.plos.org/10.1371/journal.pmed.1002138
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/27701420/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/27701420
	free resource	scite Smart Citations	https://scite.ai/reports/27701420
	free resource	Spiral, Imperial College Digital Repository	http://hdl.handle.net/10044/1/41452