Name	Info	Provider	Link
	subscription/membership/fee required	American Chemical Society	https://doi.org/10.1021/acs.jmedchem.0c01698
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-CD40-4
tyrosine kinase 2 - data and references	free resource	Guide to Pharmacology	https://www.guidetopharmacology.org/GRAC/ObjectDisplayForward?objectId=2269
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:33370104