单项选择题
当“I2<50%”时,选用下列哪项分析?()
A.RiskDifference
B.RandomEffects
C.MeanDifference
D.FixedEffect
E.Std .MeanDifference
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单项选择题
A.RiskDifference
B.RandomEffects
C.MeanDifference
D.FixedEffect
E.Std .MeanDifference
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