Name	Info	Provider	Link
	free resource	BioMed Central	https://resource-allocation.biomedcentral.com/articles/10.1186/s12962-015-0041-0
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/26366122/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/26366122
	free resource	scite Smart Citations	https://scite.ai/reports/26366122