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. 2014 Mar 6;14:42. doi: 10.1186/1471-2377-14-42

Figure 1.

Figure 1

Likert pain scale change from baseline in patients with pain at baseline.ANCOVA model with treatment and region as factors and baseline pain score as the covariate. ANCOVA: analysis of covariance; CI: confidence interval; LS: least square; SD: standard deviation.