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Correlation between clinical efficacy and CCR7 positivity rates in patients with lumbar disc herniation (LDH). The correlation between CCR7 (+) cell percentages and the improvement of visual analog scale (VAS) scores at 1 week (A) and 12 months (B) was analyzed. The association between the improvements of the ODI at 1 week (C) and 12 months (D) with the percentages of CCR7 (+) cells was analyzed. r = Spearman's correlation coefficient (95% confidence interval).
