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To the Editor.—
In “Poor Predictive Validity of the Bayley Scales of Infant Development for Cognitive Function of Extremely Low Birth Weight Children at School Age,”1,2 we learn that things have not changed in the last 40 years. Early mental tests are still poor predictors of later intelligence,3 and normality at early ages is a better predictor of later normality than early abnormality is of later …
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