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. Author manuscript; available in PMC: 2017 May 31.
Published in final edited form as: Parkinsonism Relat Disord. 2014 Sep 16;20(11):1226–1230. doi: 10.1016/j.parkreldis.2014.09.010

Figure 2.

Figure 2

Significant differences for peak expiratory flow rate (PEFR; top graph) and cough expired volume (bottom graph). Bars are means, and whisker bars are 1 standard error.