AttentionDeficit Hyperactivity Disorder ... Deficit Hyperactivity Disorder. Jacquelyn J. Gillis and her collegues in 1992 conducted a study on twins with ADHD. This study showed ... View More
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ADD ... Jacquelyn J. Gillis, then at the University of Colorado, and her colleagues reported in 1992 that the ADHD risk of a child whose identical twin has the ... View More
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