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RT @catalin191: Criteria for the assessment of moderators in systematic reviews of randomised controlled trials https://t.co/x515g3blGT
RT @catalin191: Criteria for the assessment of moderators in systematic reviews of randomised controlled trials https://t.co/x515g3blGT
Sufficient power to detect small/moderate effect in moderator analysis is at least four times that of the main effect http://t.co/vD6rDLAQli