highly significantP < 0.01
In addition, the correlation between the quantity of ethanol and scar tissue area was highly significant ( P < 0.01, r 2 = 0.6), whereas the values for the gradient deviation ( P = 0.10, r 2 = 0.34), Δ V max ( P = 0.12, r 2 = 0.31), as well as the gradient at rest ( P = 0.27, r 2 = 0.17) were not significant.