Name	Info	Provider	Link
Flu Shot	free resource	MedlinePlus Health Information	https://medlineplus.gov/flushot.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/29388195/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/29388195
	subscription/membership/fee required	Wiley	https://doi.org/10.1002/14651858.CD004879.pub5
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:29388195
	free resource	scite Smart Citations	https://scite.ai/reports/29388195