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Figure 1 Left atrial (LA) stroke volume (SV) in the control group, and in the HOCM group pre- and post-NSRT (comparing controls with HOCM patients pre-NSRT: p < 0.001, 95% confidence intervals for difference of means: 10–22; comparing controls with HOCM patients post-NSRT: p < 0.001, 95% confidence intervals: 4.1–14.4).