Name	Info	Provider	Link
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=17310545.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/17310545/
	free resource	Wiley	https://onlinelibrary.wiley.com/doi/10.1111/j.1469-7580.2006.00688.x
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-APEX1-2
	free resource	NCI CPTAC Assay Portal	https://assays.cancer.gov/CPTAC-23