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. 2016 Jun 9;11(6):e0156783. doi: 10.1371/journal.pone.0156783

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© 2016 Candela 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 credited.

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Fig 4 — The knee joints were harvested from control (A and C) and α5 CKO (B and D) 4 weeks after OA surgery. The sagittal sections were subjected to TUNEL staining. The fluorescence images (green) were superimposed with the corresponding phase images. Bar, 40 μm. E, The ratio of the TUNEL-positive cells to total cells was calculated. The graphs represent average and SD (n = 6/group).