| Name | Info | Provider | Link |
|---|---|---|---|
| Emergency Medical Services | free resource | MedlinePlus Health Information | https://medlineplus.gov/emergencymedicalservices.html |
| subscription/membership/fee required | Ovid Technologies, Inc. | http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=14758306.ui | |
| subscription/membership/fee required | Wolters Kluwer | https://doi.org/10.1097/01.pec.0000113878.10140.36 |