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Table 4 Bias risks in the included RCTs

From: Herbal medicines for treating tic disorders: a systematic review of randomised controlled trials

Study

Random sequence generation

Allocation concealment

Blinding of participants

Incomplete outcome data

Selective outcome reporting

Other bias

Wu et al. (2009) [14]

L

U

H

U

U

U

Wu et al. (2010) [15]

U

U

H

U

U

U

Zhao et al. (2010) [16]

L

U

H

U

U

U

Li et al. (2009) [17]

U

U

L

U

U

U

  1. L low risk of bias; U unclear risk of bias; H high risk of bias.
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Chinese Medicine

ISSN: 1749-8546

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