| Category | License | Title | Info | Download |
|---|---|---|---|---|
| OCAL | CC0 Public Domain | ECGHeartColour |  |  |
| OCAL | CC0 Public Domain | HeartDiagram |  | |
| OCAL | CC0 Public Domain | ECG heart |  | |
| OCAL | CC0 Public Domain | Peace EKG |  | |
| OCAL | CC0 Public Domain | HeartECG |  | |
| OCAL | CC0 Public Domain | Oxygen Tank Arvin61r58 |  | |
| OCAL | CC0 Public Domain | vintage hearts |  | |
| OCAL | CC0 Public Domain | vintage heart illustration |  | |
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