Click on image to view larger version.

Figure 1 Forearm blood flow response to acetylcholine (Ach) infusion in placebo- and growth hormone (GH)-treated patients at baseline and at the end of treatment. Data were analyzed by analysis of variance for repeated measures. p = NS for the basal response to Ach; p = 0.03 for the effect of GH treatment; p = 0.01 for the interaction between GH and ACh.