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. 2019 Sep 26;2019(9):CD013438. doi: 10.1002/14651858.CD013438
Domain High/Low/
Unclear
Judgement
Random sequence generation (selection bias)    
Allocation concealment
(selection bias)
   
Blinding of participants and personnel (performance bias)    
Blinding of outcome assessors (detection bias)    
Incomplete outcome data (attrition bias)    
Selective reporting
(reporting bias)
   
Other bias