| Name | Info | Provider | Link |
|---|---|---|---|
| Pacemakers and Implantable Defibrillators | free resource | MedlinePlus Health Information | https://medlineplus.gov/pacemakersandimplantabledefibrillators.html |
| free resource | Acta Physiologica Sinica | https://actaps.sinh.ac.cn/paper/200501/6.pdf |