Meta-Analysis
Copyright ©2013 Baishideng Publishing Group Co.
World J Surg Proced. Nov 28, 2013; 3(3): 47-53
Published online Nov 28, 2013. doi: 10.5412/wjsp.v3.i3.47
Figure 1
Figure 1 Flow-chart of the study selection process. RCTs: Randomized controlled trials.