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. Author manuscript; available in PMC: 2011 Jun 1.
Published in final edited form as: Expert Rev Cardiovasc Ther. 2010 Aug;8(8):1161–1173. doi: 10.1586/erc.10.89

Figure 1. Representative cardiac waveforms.

Figure 1

(A) Typical human ventricular myocyte action potential, with phases 0–4 labeled. (B) Surface ECG from a normal heartbeat, including the P wave, QRS complex and T wave.