| Name | Info | Provider | Link |
|---|---|---|---|
| Tears | free resource | MedlinePlus Health Information | https://medlineplus.gov/tears.html |
| subscription/membership/fee required | Springer | https://doi.org/10.1007/s10792-024-03204-8 | |
| free resource | NCI CPTAC Assay Portal | https://assays.cancer.gov/CPTAC-1496 |