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. Author manuscript; available in PMC: 2013 Mar 1.
Published in final edited form as: Parkinsonism Relat Disord. 2011 Nov 30;18(3):279–284. doi: 10.1016/j.parkreldis.2011.11.004

Fig. 1.

Fig. 1

PSQI and ESS scores in Normal Controls, ET cases, PD cases. Circles represent the sample mean. The vertical lines indicate ±1 deviation of standard error from the mean.