Name	Info	Provider	Link
	subscription/membership/fee required	Springer	https://dx.doi.org/10.1007/s00216-009-2676-1
	free resource	NCI CPTAC Assay Portal	https://assays.cancer.gov/CPTAC-1496
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:19333587