Name Info Provider Link
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=38881417.ui
free resource NCI CPTAC Assay Portal https://assays.cancer.gov/CPTAC-438
subscription/membership/fee required Silverchair Information Systems https://academic.oup.com/jhmas/article-lookup/doi/10.1093/jhmas/jrae008