Name	Info	Provider	Link
	free resource	NCI CPTAC Assay Portal	https://assays.cancer.gov/CPTAC-649
Cited by Patents in	free resource	The Lens - Patent Citations Database	https://www.lens.org/lens/search/patent/list?q=reference_cited.nlp.ids.pmid:18377012
	subscription/membership/fee required	Silverchair Information Systems	https://pubs.aip.org/aip/rsi/article-lookup/doi/10.1063/1.2842631