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. 2021 Jun 14;14:1707–1719. doi: 10.2147/JPR.S308876

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© 2021 Hung et al.

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Forest plot showing effect sizes (Hedges’ g) and 95% confidence intervals (CIs) from individual studies and pooled results comparing the effect of laser acupuncture (LA) and sham treatment on disability levels, with (A) overall effect, (B) treatment duration shorter than one month, and (C) treatment duration longer than one month.