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. 2014 Nov 12;9(11):e112284. doi: 10.1371/journal.pone.0112284

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© 2014 Zhao 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.

PMC Copyright notice

The data are shown as the mean ±S.D. The raw collagen II mRNA expression data for each group were calibrated to the B2M reference gene, and the relative expression level of collagen II was represented as 2^−△CT. a, b, c and d show the relative expression of collagen II mRNA in each cultured chondrocyte group compared with p<0.05; e, f, g and h show the relative expression of collagen II mRNA in cartilage tissue from rabbit knees compared with p<0.05.