Examlex
In 2009, the Social Security System ran a surplus of approximately $137 billion.
ECG
A test that records the electrical activity of the heart to diagnose heart conditions.
Color Code
A system for displaying information by using different colors for easy recognition and classification.
Electrode
A conductor through which electricity enters or leaves an object, substance, or region in electrical systems or devices.
ECG
An abbreviation for Electrocardiogram, a medical test that measures the electrical activity of the heart to assess its health and detect any abnormalities.
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