Name Info Provider Link
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=36308193.ui
free resource NCI CPTC Antibody Characterization Program https://antibodies.cancer.gov/detail/CPTC-CD47-4
free resource Wolters Kluwer https://doi.org/10.4103/ijpm.ijpm_223_21