Systematic Reviews
Copyright ©2014 Baishideng Publishing Group Inc.
World J Gastrointest Surg. Dec 27, 2014; 6(12): 241-247
Published online Dec 27, 2014. doi: 10.4240/wjgs.v6.i12.241
Figure 1
Figure 1 PRISMA flow chart showing trial selection methodology. RCT: Randomized controlled trial.