| Name | Info | Provider | Link |
|---|---|---|---|
| Flu | free resource | MedlinePlus Health Information | https://medlineplus.gov/flu.html |
| subscription/membership/fee required | Ovid Technologies, Inc. | http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=17033532.ui | |
| subscription/membership/fee required | Wiley | https://onlinelibrary.wiley.com/doi/10.1097/01.mpg.0000232332.00677.3d | |
| subscription/membership/fee required | Wolters Kluwer | https://doi.org/10.1097/01.mpg.0000232332.00677.3d |