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Figure 1: Apical four-chamber view showing severe left atrial dilation (volume index = 49 ml/m2) (a); color Doppler showing significant mitral regurgitation (b)

Figure 1: Apical four-chamber view showing severe left atrial dilation (volume index = 49 ml/m<sup>2</sup>) (a); color Doppler showing significant mitral regurgitation (b)