electrocardiogram measure heart rate ecg lies the cardiogram caring for health medical |
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| navigate by keyword : cardiogram ecg electrocardiography research heart medical cardio care beat cardiology cardiograph chart curve diagnosis graph heartbeat medicine pulse amplitude health paper healthy clinic document hospital monitoring print result science scientific technology background blue arrhythmia analysis diagram electrocardiogram |
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| Electrocardiogram to measure heart rate. ECG. Heart lies on the cardiogram. Caring for the health of the heart. Medical research. Close-up. High quality photo |
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