Topical Diclofenac Solution for Osteoarthritis of the Knee: An Updated Meta-Analysis of Randomized Controlled Trials

Figure 4

Funnel plots of the efficacy of topical diclofenac solution compared to vehicle control. (a) WOMAC pain subscale, (b) WOMAC physical function subscale, (c) WOMAC stiffness subscale, and (d) pain on walking.

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