Brief Article
Copyright ©2012 Baishideng Publishing Group Co.
World J Gastroenterol. Nov 21, 2012; 18(43): 6290-6301
Published online Nov 21, 2012. doi: 10.3748/wjg.v18.i43.6290
Figure 1
Figure 1 Risk of bias in included trials. A: Adequate sequence generation; B: Allocation concealment; C: Blinding; D: Incomplete outcome data addressed; E: Free of selective reporting; F: Free of other bias. 1: No (high risk of bias); 2: Unclear; 3: Yes (low risk of bias).