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Changes in angiogenesis in A2AR KO and EC-A2AR KO mice after full-thickness wounding. (A) Experimental procedure. (B) Immunohistochemistry for CD31 in A2AR KO and EC-A2AR KO mice at 6 and 9 days postwounding. Scale bar, 50 µm. (C) Quantitative analysis of CD31-positive cells in each group. **p < 0.01 (n = 3); NS, not significant.
