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. Author manuscript; available in PMC: 2017 Feb 1.
Published in final edited form as: Parkinsonism Relat Disord. 2015 Dec 19;23:57–61. doi: 10.1016/j.parkreldis.2015.12.005

Figure 1.

Figure 1

Association between head injury and PD by the age at which the first head injury occurred when lagging injuries by 10 years. Odds ratios are indicated by black circles and the 95% confidence intervals by the vertical lines.