| Name | Info | Provider | Link |
|---|---|---|---|
| Vaccines | free resource | MedlinePlus Health Information | https://medlineplus.gov/vaccines.html |
| subscription/membership/fee required | Ovid Technologies, Inc. | http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=19093772.ui | |
| subscription/membership/fee required | Taylor & Francis | https://www.tandfonline.com/doi/full/10.1586/14760584.8.1.43 |