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Figure 4 Overall mortality for patients with patients in the lowest (tercile 1: <1,742 pg/ml), mid- (tercile 2: 1,743 to 5,210 pg/ml), and highest (tercile 3: >5,211 pg/ml) tercile of N-terminal pro-brain natriuretic peptide; p = 0.0006 (chi-squared test) for the difference. Dotted line = tercile 1; dashed line = tercile 2; solid line = tercile 3.
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