689236.fig.003a
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689236.fig.003b
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689236.fig.003c
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Figure 3: Time by treatment interaction graphs between groups over two years. There was a significant difference in improvement over time between groups in the Western Ontario and McMaster Osteoarthritis Index (WOMAC) for pain and function, the Short Form 36 (SF-36) physical component summary, and in the Knee Society Score (KSS) Function Scale.