Name	Info	Provider	Link
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=9299708.ui
	free resource	Wiley	https://onlinelibrary.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=0168-6445&date=1997&volume=20&issue=3-4&spage=291
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:9299708
	subscription/membership/fee required	Silverchair Information Systems	https://academic.oup.com/femsre/article-lookup/doi/10.1111/j.1574-6976.1997.tb00315.x