Review
Copyright ©2014 Baishideng Publishing Group Co.
World J Gastrointest Surg. Feb 27, 2014; 6(2): 14-26
Published online Feb 27, 2014. doi: 10.4240/wjgs.v6.i2.14
Figure 1
Figure 1 Preferred items for reporting of systematic reviews and meta-analyses-chart for included articles. Two articles could be included in two subgroups.