Name	Info	Provider	Link
	free resource	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S0085-2538(15)53786-1
Pneumonia	free resource	MedlinePlus Health Information	https://medlineplus.gov/pneumonia.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/19337226/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/19337226