What does the ECG do?

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  1. #electrical
  2. #screen
  3. #measures
  4. #rhythm
  5. #strip
  6. #heart
  7. #working
  8. #whether
  9. #electrocardiogram
  10. #moving
  11. #records
  12. #normally
  13. #paper
  14. #which
  15. #activity