Name	Info	Provider	Link
	free resource	BioMed Central	https://ij-healthgeographics.biomedcentral.com/articles/10.1186/s12942-018-0153-9
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/30139378/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/30139378
	free resource	scite Smart Citations	https://scite.ai/reports/30139378