Name	Info	Provider	Link
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=9500787.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/9500787/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/9500787
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-CD40-4
	free resource	NCI CPTAC Assay Portal	https://assays.cancer.gov/CPTAC-369
	free resource	Silverchair Information Systems	https://rupress.org/jem/article-lookup/doi/10.1084/jem.187.6.847