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. 2015 Jul 7;2015(7):CD010555. doi: 10.1002/14651858.CD010555.pub2
Allocation of intervention (random sequence generation?)
State here method used to generate allocation and reasons for grading Grade (circle)
 
 
Adequate (random) (low risk of bias)
Inadequate (e.g. alternate) (high risk of bias)
Unclear (unclear risk of bias)