Name	Info	Provider	Link
	subscription/membership/fee required	Wiley	https://onlinelibrary.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=0378-1097&date=1989&volume=49&issue=2-3&spage=273
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-NT5E-1
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:2663636
	subscription/membership/fee required	Silverchair Information Systems	https://academic.oup.com/femsle/article-lookup/doi/10.1016/0378-1097(89)90052-9