Name	Info	Provider	Link
	subscription/membership/fee required	Ingenta plc	https://www.ingentaconnect.com/openurl?genre=article&issn=&volume=22&issue=11&spage=1348&aulast=Ji
	subscription/membership/fee required	Bentham Science Publishers Ltd.	https://www.eurekaselect.com/127664/article
Cited by Patents in	free resource	The Lens - Patent Citations Database	https://www.lens.org/lens/search/patent/list?q=reference_cited.nlp.ids.pmid:25620094