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Densities of small blood vessel. Bars: Ischemic/VEGF, ischemic heart injected with AAV-VEGF; Ischemic/PBS, ischemic heart injected with PBS; Normal/VEGF, normal heart injected with AAV-VEGF/AAV-LacZ. The mean is shown above each bar; error bars are the SEM. Differences between the ischemic/VEGF and ischemic /PBS groups and between the ischemic/VEGF and normal/VEGF groups are statistically significant (P < 0.01).
