Name Info Provider Link
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=22505011.ui
free resource NCI CPTC Antibody Characterization Program https://antibodies.cancer.gov/detail/CPTC-SERPINB3-1
subscription/membership/fee required Wolters Kluwer https://doi.org/10.1097/PAI.0b013e31823277f6