Observational Study
Copyright ©The Author(s) 2017.
World J Cardiol. Dec 26, 2017; 9(12): 822-829
Published online Dec 26, 2017. doi: 10.4330/wjc.v9.i12.822
Figure 1
Figure 1 Serum endothelin-1 concentration. A: Pre-operative ET-1 concentration by age group; B: Comparison between pre-operative and post-operative levels for each age group. a,cP < 0.05. Scale bars represent standard deviation. ET-1: Endothelin-1.