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(a) 12-lead electrocardiogram of the patient showing regular wide complex tachycardia. (b) Electrocardiogram of the same patient postcardioversion showing positive T-wave in leads I and aVL and negative T-wave in leads II, III, aVF, and V3 to V6 with precordial T-wave inversion more than T-wave inversion in inferior leads suggestive of memory T-waves
