Name	Info	Provider	Link
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-CD4-2
	free resource	NCI CPTAC Assay Portal	https://assays.cancer.gov/CPTAC-80
Full text from	free resource	CORE	https://core.ac.uk/reader/52412530?utm_source=linkout
NK1 receptor - data and references	free resource	Guide to Pharmacology	https://www.guidetopharmacology.org/GRAC/ObjectDisplayForward?objectId=360
	subscription/membership/fee required	Silverchair Information Systems	https://journals.aai.org/jimmunol/article-lookup/doi/10.4049/jimmunol.1002535