Name	Info	Provider	Link
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:8013503
	subscription/membership/fee required	Silverchair Information Systems	https://academic.oup.com/eurheartj/article-lookup/doi/10.1093/oxfordjournals.eurheartj.a060497