| Name | Info | Provider | Link |
|---|---|---|---|
| subscription/membership/fee required | Ovid Technologies, Inc. | http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=15536653.ui | |
| subscription/membership/fee required | Taylor & Francis | https://www.tandfonline.com/doi/full/10.1080/00016480310017063 | |
| free resource | NCI CPTC Antibody Characterization Program | https://antibodies.cancer.gov/detail/CPTC-PGR-1 |