Name	Info	Provider	Link
	subscription/membership/fee required	Ingenta plc	https://www.ingentaconnect.com/openurl?genre=article&issn=1021-335X&volume=8&issue=3&spage=611&aulast=Berrak
Heart Failure	free resource	MedlinePlus Health Information	https://medlineplus.gov/heartfailure.html
	subscription/membership/fee required	Spandidos Publications	https://www.spandidos-publications.com/or/8/3/611