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The correlations among the expressions of VEGF-A, VEGFR-1, and HIF-1α. (A) The correlation between the expression of VEGF-A in cancer and that of VEGFR-1 in cancer. (B) The correlation between the expression of VEGF-A in cancer and that of VEGFR-1 in the stroma. (C) The correlation between the expression of VEGF-A in the stroma and that of VEGFR-1 in cancer. (D) The correlation between the expression of HIF-1α in cancer and that of VEGF-A in cancer.
