Name	Info	Provider	Link
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-SERPINA1-1
	free resource	NCI CPTAC Assay Portal	https://assays.cancer.gov/CPTAC-651
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:9360542
	subscription/membership/fee required	Silverchair Information Systems	https://academic.oup.com/jcem/article-lookup/doi/10.1210/jcem.82.11.4372