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Figure 1 Distribution of systolic pulmonary artery pressure (sPAP) according to New York Heart Association (NYHA) functional class for patients with an open septal defect but without Eisenmenger's physiology. (A) the results for atrial septal defect (ASD); (B) results for ventricular septal defect (VSD). The thick black lines indicate the median, the boxes the interval between the 25th and 75th percentiles, and the outer lines the extreme values.
