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. Author manuscript; available in PMC: 2010 May 20.
Published in final edited form as: Spine (Phila Pa 1976). 2009 May 20;34(12):1301–1306. doi: 10.1097/BRS.0b013e3181a18263

Figure 1.

Figure 1

Percent of participants classified as having any DDD at a particular spinal level. PF = pain-free. Any disc disease: having a score of >0 on 0 to 3 scale at any spinal level. *P < 0.05.