| Name | Info | Provider | Link |
|---|---|---|---|
| subscription/membership/fee required | Ingenta plc | https://www.ingentaconnect.com/openurl?genre=article&issn=&volume=64&issue=3&spage=183&aulast=Oftedal | |
| Insomnia | free resource | MedlinePlus Health Information | https://medlineplus.gov/insomnia.html |
| subscription/membership/fee required | Ovid Technologies, Inc. | http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=34817462.ui | |
| subscription/membership/fee required | Wolters Kluwer | https://doi.org/10.1097/JOM.0000000000002439 |