Name	Info	Provider	Link
	subscription/membership/fee required	HighWire	https://jpet.aspetjournals.org/lookup/pmidlookup?view=long&pmid=9399979
Vaccines	free resource	MedlinePlus Health Information	https://medlineplus.gov/vaccines.html
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:9399979