normal heart rhythm ecg electrocardiogram healthy person examination method |
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| navigate by keyword : electrocardiogram ecg pulse heart heartbeat hospital medical screen cardiology health cardiac cardiogram diagnosis ekg medicine beat monitor science graph rhythm chart display technology graphic line rate symbol norm cardio vertical yellow orange method abstract cardiograph digital healthy monitoring patient background test computer human data pulsating neon person illustration |
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| Normal heart rhythm ECG electrocardiogram of a healthy person, heart examination method. |
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