HIF1A and neoplasm: There was a strong correlation between VEGF expression and MVD (Spearman's rho correlation coefficient=0.731, P=0.001) and proliferating ECs (Spearman's rho correlation coefficient=0.576, P=0.001), and a moderate correlation between VEGF expression and HIF-1α (Spearman's rho correlation coefficient=0.317, P=0.001) in epithelial/tumour cells.