Name	Info	Provider	Link
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=10522993.ui
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-PTHrP-2
	free resource	NCI CPTAC Assay Portal	https://assays.cancer.gov/CPTAC-76
	subscription/membership/fee required	Silverchair Information Systems	https://academic.oup.com/jcem/article-lookup/doi/10.1210/jcem.84.10.6026