Name	Info	Provider	Link
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S0304395997000602
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=9414052.ui
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-KRT7-2
	free resource	NCI CPTAC Assay Portal	https://assays.cancer.gov/CPTAC-1520
	subscription/membership/fee required	Wolters Kluwer	https://doi.org/10.1016/s0304-3959(97)00060-2