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Figure 4 Correlation Analyses
Correlation analyses between changes from baseline in the ergoreflex component of the ventilatory response to handgrip and those in VE/VCO
2 slope and peak oxygen uptake (VO
2) in the placebo and sildenafil groups at 3- (open circles) and 6-month (solid circles) treatment. VCO
2 = carbon dioxide production; VE = ventilation.
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