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. 2013 Sep 30;8(9):e76229. doi: 10.1371/journal.pone.0076229

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© 2013 Rebours et al

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 author and source are properly credited.

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Smooth muscle actin expression of PSC (black arrows) at baseline (8e), H24 (8f), H48 (8g) and H72 (8h). Double Ki67/α-SMA expression of PSC was performed. The nuclear Ki67 and the cytoplasmic α-SMA expression (black arrows) appeared as red and brown immunostaining, respectively (baseline, 8i; H24, 8j; H48, 8 k and H72, 8l). The Ki67 nuclear staining of PSC was observed (baseline, 8m; H24, 8o; H48, 8p and H72, 8q).