Copyright ©The Author(s) 2015.
World J Clin Oncol. Aug 10, 2015; 6(4): 73-79
Published online Aug 10, 2015. doi: 10.5306/wjco.v6.i4.73
Figure 2
Figure 2 Application of the Cochrane Collaboration’s tool for assessing risk of bias in randomised trials. The figure shows the summary of risk-of-bias assessments for the 7 randomized, controlled trials included in our analysis. Low risk of bias is represented by green circles (see Higgins et al[7] for further details).