Original Article
Copyright ©2010 Baishideng Publishing Group Co.
World J Cardiol. May 26, 2010; 2(5): 118-124
Published online May 26, 2010. doi: 10.4330/wjc.v2.i5.118
Figure 1
Figure 1 Heart rate and S4 strength trends during exercise tolerance testing (ETT). A: A patient without coronary artery disease (CAD) by angiography; B: A patient with CAD by angiography.