Meta-Analysis
Copyright ©2012 Baishideng Publishing Group Co.
World J Gastrointest Surg. Nov 27, 2012; 4(11): 256-261
Published online Nov 27, 2012. doi: 10.4240/wjgs.v4.i11.256
Figure 1
Figure 1 Outline of search - flow diagram. RCTs: Randomized controlled trials; CCTs: Controlled clinical trials.