Name	Info	Provider	Link
	free resource	BioMed Central	https://health-policy-systems.biomedcentral.com/articles/10.1186/1478-4505-13-3
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/25552272/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/25552272
	free resource	scite Smart Citations	https://scite.ai/reports/25552272