Meta-Analysis
Copyright ©2014 Baishideng Publishing Group Inc.
World J Gastroenterol. Dec 14, 2014; 20(46): 17648-17655
Published online Dec 14, 2014. doi: 10.3748/wjg.v20.i46.17648
Figure 6
Figure 6 Funnel plot of the included studies for the overall survival analysis is largely symmetric.