NASA NTRS · 19730000401
Vectorcardiogram
Abstract
System measures electrocardiographic potentials to produce precise quantitative measurement of changes that occur in individual's cardiac function. System is rugged, built to sustain extremes of temperature, pressure, humidity, shock, and vibration. It can also be used in pure oxygen environment without danger of combustion.
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Costello, M.. 1973-11-01. Vectorcardiogram. https://ntrs.nasa.gov/citations/19730000401
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