Brief Article
Copyright ©2012 Baishideng Publishing Group Co.
World J Cardiol. Jan 26, 2012; 4(1): 15-19
Published online Jan 26, 2012. doi: 10.4330/wjc.v4.i1.15
Figure 1
Figure 1 Kaplan-Meier curve for cumulative survival. Threshold heart rate (HR) ≥ or < 70 bpm.