Systematic Reviews
Copyright ©The Author(s) 2015.
World J Meta-Anal. Oct 26, 2015; 3(5): 206-214
Published online Oct 26, 2015. doi: 10.13105/wjma.v3.i5.206
Figure 1
Figure 1 Flow diagram of study selection process. RCT: Randomised clinical trial.
Figure 2
Figure 2 Risk of bias summary of included studies.
Figure 3
Figure 3 Risk of bias graph of included studies.