| Name | Info | Provider | Link |
|---|---|---|---|
| Breast Cancer | free resource | MedlinePlus Health Information | https://medlineplus.gov/breastcancer.html |
| subscription/membership/fee required | Ovid Technologies, Inc. | http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=32712650.ui | |
| free resource | NCI CPTC Antibody Characterization Program | https://antibodies.cancer.gov/detail/CPTC-PGR-1 | |
| subscription/membership/fee required | Silverchair Information Systems | https://academic.oup.com/clinchem/article-lookup/doi/10.1093/clinchem/hvaa121 |