Name	Info	Provider	Link
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/19515106/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/19515106
	subscription/membership/fee required	Wiley	https://doi.org/10.1111/j.1469-8986.2009.00845.x
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-CD40-4