Name	Info	Provider	Link
	free resource	BioMed Central	https://ij-healthgeographics.biomedcentral.com/articles/10.1186/s12942-021-00261-5
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/33509208/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/33509208
	free resource	scite Smart Citations	https://scite.ai/reports/33509208