| Name | Info | Provider | Link |
|---|---|---|---|
| Opioids and Opioid Use Disorder (OUD) | free resource | MedlinePlus Health Information | https://medlineplus.gov/opioidsandopioidusedisorderoud.html |
| free resource | PubMed Central | https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/31428431/ | |
| free resource | Europe PubMed Central | https://europepmc.org/abstract/MED/31428431 | |
| free resource | Wiley | https://onlinelibrary.wiley.com/doi/10.1002/prp2.501 |