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Figure 1 Two-dimensional echocardiographic images of left atrium (LA) (A, B) and the mitral annulus (C, D) in the control (A, C) and aorto-pulmonary artery shunt (APS) (B, D) states. Time-motion echocardiographic images of the left ventricle (LV) in the control (E) and APS (F) states.