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. Author manuscript; available in PMC: 2009 Feb 1.
Published in final edited form as: Heart Rhythm. 2007 Oct 6;5(2):208–214. doi: 10.1016/j.hrthm.2007.10.006

Figure 4.

Figure 4

Scatterplot showing weak correlation between RTI:DIStdErr and QT Variability Index. The absence of a strong correlation between these two measures suggests they may be of complementary prognostic value.