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Table 1 Potential risks of bias, assessed in the present study [25]

From: A systematic review of the effects of acupuncture on xerostomia and hyposalivation

Random sequence generation selection bias
Allocation concealment selection bias
Blinding of participants performance bias
Blinding of practitioners performance bias
Blinding of outcome assessment detection bias
Incomplete outcome data attrition bias
Selective reporting reporting bias
Other bias