| Name | Info | Provider | Link |
|---|---|---|---|
| subscription/membership/fee required | Atypon | https://www.ajronline.org/doi/10.2214/AJR.22.27437 | |
| Crohn's Disease | free resource | MedlinePlus Health Information | https://medlineplus.gov/crohnsdisease.html |
| free resource | NCI CPTC Antibody Characterization Program | https://antibodies.cancer.gov/detail/CPTC-CRP-1 |