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Figure 3 Effects of tetrahydrobiopterin (n = 10 each) on left ventricular echocardiographic findings four weeks after CS. The data on NCD- and HCD-sham (n = 33 each) are the same as those in Figure 2 (for statistical analysis, n = 10 each in other four groups for Bonferroni’s post-hoc comparisons). Open circles = NCD; closed circles = HCD. N = 33 each in NCD- and HCD-sham. N = 10 each in NCD- and HCD-CS. N = 10 each in NCD- and HCD-CS with tetrahydrobiopterin. *p < 0.01,  p < 0.05 vs. corresponding sham;  p < 0.01,  p < 0.05 vs. corresponding CS; ||p < 0.01, ¶p < 0.05 vs. corresponding NCD. LV = left ventricular; other abbreviations as in Figure 1.
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