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Figure 3 Electrocardiography and left ventriculographic findings of a representative case (Case 2). (Left) 12-lead electrocardiogram showed ST elevation in leads II, III, aVF and V₃ to V₆. In the subacute period, the electrocardiogram exhibited a negative T-wave. (Right) Initial left ventriculogram revealed apical ballooning only in the acute period.