Name	Info	Provider	Link
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-ENTPD1-1
	free resource	NCI CPTAC Assay Portal	https://assays.cancer.gov/CPTAC-1292
	subscription/membership/fee required	Clinical and Experimental Rheumatology	http://www.clinexprheumatol.org/pubmed/find-pii.asp?pii=29745882