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. 2017 Apr 4;2017(4):CD011387. doi: 10.1002/14651858.CD011387.pub2
Domain Risk of bias   Support for judgement Location in text
(pg & ¶/fig/table)
Low risk High risk Unclear risk Non‐applicable
Random sequence generation
(selection bias)
           
Allocation concealment
(selection bias)
           
Blinding of participants and personnel
(performance bias)
           
(if required)            
Blinding of outcome assessment
(detection bias)
           
(if required)            
Incomplete outcome data
(attrition bias)
           
Selective outcome reporting
(reporting bias)
        OBS: check if there is a protocol in Clinical.trial.gov  
Other bias            
Notes: