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. Author manuscript; available in PMC: 2015 Jun 1.
Published in final edited form as: Spine J. 2013 Dec 1;14(6):1017–1028. doi: 10.1016/j.spinee.2013.11.034

Figure 4.

Figure 4

Figure 4

Figure 4

Figure 4

Bar graphs illustrating histological grades (sum of 4 categories from grading scale) at A) 2 weeks, B) 8 weeks, C) 12 weeks, and D) 24 weeks.