| Name | Info | Provider | Link |
|---|---|---|---|
| subscription/membership/fee required | Elsevier Science | https://linkinghub.elsevier.com/retrieve/pii/S0169-328X(96)00165-9 | |
| Pain | free resource | MedlinePlus Health Information | https://medlineplus.gov/pain.html |
| free resource | Mouse Genome Informatics (MGI) | http://www.informatics.jax.org/reference/9037523 |