Since the standard deviation of the intercept (0.027) was found
to be higher than the intercept in itself, a calibration through the
origin was chosen for the whole study (Dolan, 2009), and the
recomputed equation was y = (0.293 ± 0.002)x, with a coefficient
of determination R2 equal to 0.9987 and a standard error on y-estimate
equal to 0.095