Name Info Provider Link
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=10520175.ui
free resource Wiley https://onlinelibrary.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=0300-9475&date=1999&volume=50&issue=4&spage=363
free resource NCI CPTC Antibody Characterization Program https://antibodies.cancer.gov/detail/CPTC-CD40-4