Name	Info	Provider	Link
	free resource	BioMed Central	https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-017-2031-3
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/28732519/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/28732519
	free resource	scite Smart Citations	https://scite.ai/reports/28732519
	free resource	Spiral, Imperial College Digital Repository	http://hdl.handle.net/10044/1/57416
Full text from	free resource	White Rose Research Online	https://eprints.whiterose.ac.uk/120662/