Name	Info	Provider	Link
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=21562080.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21562080/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/21562080
	free resource	NCI CPTAC Assay Portal	https://assays.cancer.gov/CPTAC-274
	subscription/membership/fee required	Silverchair Information Systems	https://diabetesjournals.org/diabetes/article-lookup/doi/10.2337/db11-0120