Name	Info	Provider	Link
	free resource	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S1808-8694(15)31272-6
Pneumococcal Infections	free resource	MedlinePlus Health Information	https://medlineplus.gov/pneumococcalinfections.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/16612530/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/16612530