| Name | Info | Provider | Link |
|---|---|---|---|
| Heart Transplantation | free resource | MedlinePlus Health Information | https://medlineplus.gov/hearttransplantation.html |
| subscription/membership/fee required | Silverchair Information Systems | https://academic.oup.com/ejcts/article-lookup/doi/10.1016/1010-7940(89)90066-3 |