| Name | Info | Provider | Link |
|---|---|---|---|
| Pacemakers and Implantable Defibrillators | free resource | MedlinePlus Health Information | https://medlineplus.gov/pacemakersandimplantabledefibrillators.html |
| subscription/membership/fee required | Springer | https://dx.doi.org/10.1007/s00399-006-0505-1 |