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. 2022 Mar 23;11(4):383–393. doi: 10.1093/stcltm/szac006

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© The Author(s) 2022. Published by Oxford University Press.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 3. — Funnel plot for apomorphine-induced rotation (A), amphetamine-induced rotation (B), limb function (C), and densitometry of TH⁺ staining (D). Individual study results are represented by dots, with the y-axis signifying study quality and the x-axis showing the study results. The solid vertical line represents the pooled effect size. The dashed diagonal lines represent pseudo-95% confidence limits around the pooled effect size for each standard error (SE) vertical axis. SMD, standardized mean difference.