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Background: The co-occurrence of attention-deficit hyperactivity disorder (ADHD) and psychoactive substance use disorder (PSUD) in adults has been the focus of much clinical and scientific inquiry. In this study we examine the effects of ADHD on the transitions from substance abuse to dependence and between different classes of agents of abuse.Methods: An ADHD sample of 239 consecutively referred...
Attention-deficit hyperactivity disorder (ADHD) is an early-onset, clinically heterogeneous disorder of inattention, hyperactivity, and impulsivity. Family, twin, adoption, segregation analysis, and molecular genetic studies show that is has a substantial genetic component. Although their results are still tentative, molecular genetic studies suggest that three genes may increase the susceptibility...
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