It is like a continuous electrocardiograph, ECG, recording.
In the early 1900s, we learned about blood types, vitamins, and Alzheimer's disease, and invented the electrocardiograph.
Ambulatory monitors are small portable electrocardiograph machines that record the heart's rhythm.
An electrocardiograph is used to monitor heart activity.
Cardiac pacemakers, electrocardiograph devices, or any other medically implanted device used for life support can be interrupted with use.
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