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. 2017 Jan 16;7:40779. doi: 10.1038/srep40779

Figure 3. Funnel plot with pseudo 95% confidence limits for assessment of publication bias.

Figure 3

(A) Gender, (B) patient age, (C) onset age of Parkinson’s disease, (D) disease duration, (E) Hoehn-Yahr staging scale, and (F) Unified Parkinson’s Disease Rating Scale part III (UPDRS-III) score.