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. Author manuscript; available in PMC: 2012 Apr 23.
Published in final edited form as: Nat Clin Pract Cardiovasc Med. 2007 May;4(5):284–288. doi: 10.1038/ncpcardio0877

Figure 3.

Figure 3

Twenty-four hour Holter monitoring demonstrating the patient's ventricular ectopy. Midnight and noon have been marked with squares. (A) During β-blocker therapy alone. (B) During combined mexiletine and β-blocker therapy.