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Janet B. Hardy
In her Johns Hopkins study, Dr. Janet B. Hardy found correlations between the mother’s age and the child’s IQ and other physical and developmental problems. Hardy died Oct. 23 at a retirement community in Maryland.

In her Johns Hopkins study, Dr. Janet B. Hardy found correlations between the mother’s age and the child’s IQ and other physical and developmental problems. Hardy died Oct. 23 at a retirement community in Maryland.