Name	Info	Provider	Link
	subscription/membership/fee required	Ingenta plc	https://www.ingentaconnect.com/openurl?genre=article&issn=1027-3719&volume=13&issue=8&spage=1048&aulast=Martínez Lacasa
Lung Diseases	free resource	MedlinePlus Health Information	https://medlineplus.gov/lungdiseases.html