| Name | Info | Provider | Link |
|---|---|---|---|
| Chronic Pain | free resource | MedlinePlus Health Information | https://medlineplus.gov/chronicpain.html |
| free resource | Scientific Electronic Library Online | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872017000300010&lng=en&nrm=iso&tlng=en | |
| free resource | scite Smart Citations | https://scite.ai/reports/28548193 |