| Name | Info | Provider | Link |
|---|---|---|---|
| Poison Ivy, Oak, and Sumac | free resource | MedlinePlus Health Information | https://medlineplus.gov/poisonivyoakandsumac.html |
| subscription/membership/fee required | Silverchair Information Systems | https://jamanetwork.com/journals/jama/fullarticle/vol/266/pg/1362 |