Name	Info	Provider	Link
	free resource	BioMed Central	https://bmcinfectdis.biomedcentral.com/articles/10.1186/1471-2334-12-26
Flu	free resource	MedlinePlus Health Information	https://medlineplus.gov/flu.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22280120/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/22280120
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:22280120