Brief Article
Copyright ©2012 Baishideng Publishing Group Co.
World J Cardiol. Mar 26, 2012; 4(3): 66-71
Published online Mar 26, 2012. doi: 10.4330/wjc.v4.i3.66
Figure 1
Figure 1 Kaplan-Meier survival curve in patients with heart failure, comparing those with and without chronic obstructive pulmonary disease for June 2007 to June 2010. HF: Heart failure; COPD: Chronic obstructive pulmonary disease; NS: Not significant.