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. 2009 Jun 11;15:1169–1178.

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This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Effect of P2Y₂-R siRNA on Ap₄A-mediated corneal wound healing. A: A representative sequence of the progress in the corneal wound in the three different treatments (0.9% saline, 100 μM Ap₄A, and siRNA+100 μM Ap₄A) is shown. B: The graphs show the variation of the wounded area versus time and the estimated migration rates (EMR) in the three treatments. An asterisk means p<0.05 when compared to the control, and a double asterisk indicates p<0.01 when compared to the control.