Name	Info	Provider	Link
	subscription/membership/fee required	Ingenta plc	https://www.ingentaconnect.com/openurl?genre=article&issn=1872-213X&volume=5&issue=3&spage=178&aulast=Larocca
COPD	free resource	MedlinePlus Health Information	https://medlineplus.gov/copd.html