| Name | Info | Provider | Link |
|---|---|---|---|
| Vitamin A | free resource | MedlinePlus Health Information | https://medlineplus.gov/vitamina.html |
| subscription/membership/fee required | Springer | https://dx.doi.org/10.1007/s11373-005-3728-y | |
| free resource | NCI CPTC Antibody Characterization Program | https://antibodies.cancer.gov/detail/CPTC-HLA-B-1 |