| Category | License | Title | Info | Download | Report | OCAL | CC0 Public Domain | Heart EKG Rhythm Thick |  |  |  | OCAL | CC0 Public Domain | Heart EKG Rhythm Inner |  | | | OCAL | CC0 Public Domain | Heart EKG Rhythm Purple |  | | |
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| Category | License | Title | Info | Download | Report | OCAL | CC0 Public Domain | Heart EKG Rhythm Thick | | | | OCAL | CC0 Public Domain | Heart EKG Rhythm Inner | | | | OCAL | CC0 Public Domain | Heart EKG Rhythm Purple | | | |
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