Name	Info	Provider	Link
	free resource	Atypon	https:///www.science.org/doi/10.1126/sciadv.aax2285?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub 0pubmed
Vaccines	free resource	MedlinePlus Health Information	https://medlineplus.gov/vaccines.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/32064333/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/32064333
	free resource	Bio-protocol Exchange	https://bio-protocol.org/e3973