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69. What type of currents does the ECG record? A. Intracellular currents produced by atrial and ventricular myocardium B. Extracellular currents produced by atrial and ventricular myocardium C. Intracellular currents produced only by the atrial myocardium D. Extracellular currents produced only by the ventricular myocardium E. Extracellular currents produced by striated muscle

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