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An ECG stands for an "electrocardiogram," which is a test that measures and records the electrical activity of the heart. It is used by doctors to obtain...

An ECG stands for an "electrocardiogram," which is a test that measures and records the electrical activity of the heart. It is used by doctors to obtain...An ECG stands for an "electrocardiogram," which is a test that measures and records the electrical activity of the heart. It is used by doctors to obtain...An ECG stands for an "electrocardiogram," which is a test that measures and records the electrical activity of the heart. It is used by doctors to obtain...An ECG stands for an "electrocardiogram," which is a test that measures and records the electrical activity of the heart. It is used by doctors to obtain...An ECG stands for an "electrocardiogram," which is a test that measures and records the electrical activity of the heart. It is used by doctors to obtain...

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