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. Author manuscript; available in PMC: 2010 Feb 1.
Published in final edited form as: Parkinsonism Relat Disord. 2008 May 29;15(2):122–127. doi: 10.1016/j.parkreldis.2008.04.002

Figure 2.

Figure 2

Preejection period index (PEPI; panel A) and systolic time ratio index (STRI) defined as ratio of PEPI to left ventricular ejection time index (panel B) at baseline (BL) and during tyramine (TYR) infusion in patients with cardiac sympathetic denervation (DEN; white bars), in patients with normal cardiac innervation (INN; black bars) and in healthy controls (CON; dashed bars). *p<0.05.