| Name | Info | Provider | Link |
|---|---|---|---|
| subscription/membership/fee required | Elsevier Science | https://linkinghub.elsevier.com/retrieve/pii/0924-977X(90)90016-4 | |
| Anxiety | free resource | MedlinePlus Health Information | https://medlineplus.gov/anxiety.html |
| Anxiety | free resource | MedlinePlus Consumer Health Information | https://medlineplus.gov/anxiety.html |