Meta Analysis
Copyright ©2012 Baishideng Publishing Group Co.
World J Gastroenterol. Dec 7, 2012; 18(45): 6657-6668
Published online Dec 7, 2012. doi: 10.3748/wjg.v18.i45.6657
Figure 3
Figure 3 Funnel plot to investigate publication bias. The laparoscopic vs the open group: A funnel plot showing the operation time, hospital stay and tumor recurrence. OR: Odds ratio; MD: Mean difference.