Name Info Provider Link
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=9677110.ui
free resource NCI CPTC Antibody Characterization Program https://antibodies.cancer.gov/detail/CPTC-TTR-1
subscription/membership/fee required Silverchair Information Systems https://jamanetwork.com/journals/jamaotolaryngology/fullarticle/vol/124/pg/761