Name	Info	Provider	Link
	free resource	BioMed Central	https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-018-2608-5
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/29673395/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/29673395
	free resource	scite Smart Citations	https://scite.ai/reports/29673395