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Figure 2 Ergoreflex Assessment
Graphic expression of ventilation (VE) at rest (2 min), during handgrip (5 min), and during recovery (3 min) of metaboreflex test, in the baseline and after 3- and 6-month treatment in patients receiving placebo and in patients receiving sildenafil. *p < 0.01 versus no occlusion. 
p < 0.01 versus patients receiving placebo.