Name	Info	Provider	Link
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S1386-6532(12)00059-5
Flu	free resource	MedlinePlus Health Information	https://medlineplus.gov/flu.html
	subscription/membership/fee required	ClinicalKey	https://www.clinicalkey.com/content/playBy/pii?v=S1386-6532(12)00059-5
Full text from	free resource	CORE	https://core.ac.uk/reader/148239680?utm_source=linkout