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NPRS-related changes on the baseline, 4th session, 8th session, 12th session, and 16th session of Diclofenac potassium (DK) treatment (a) with phonophoresis (b) without phonophoresis, in sports-injured patients. Diclofenac sodium (DS) was used as a standard control. Control group is the placebo. Statistical significance (p-values) is detailed in the main text. ns = no significant; p < 0.05 *, p < 0.01 **, p < 0.001 ***. NPRS: Numerical Pain Rating Scale.
