Name	Info	Provider	Link
	subscription/membership/fee required	Ingenta plc	https://www.ingentaconnect.com/openurl?genre=article&issn=&volume=7&issue=1&spage=306&aulast=Zeng
	subscription/membership/fee required	Spandidos Publications	https://www.spandidos-publications.com/mmr/7/1/306
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-PGR-2