Shorter dinucleotide repeat length in the DRD5 gene is associated with attention deficit hyperactivity disorder.

Department of Child and Adolescent Psychiatry, Seoul National University Hospital, Department of Preventive Medicine, College of Medicine, Seoul National University, Seoul, Department of Psychiatry, Chonbuk National University School of Medicine, Jeonju, Department of Psychiatry, College of Medicine, Dankook University, Cheonan, Department of Psychiatry, Seoul National University Bundang Hospital, Seongnam, Department of Psychiatry, Kyungpook National University Hospital, Daegu, Department of Psychiatry, Chungbuk National University Hospital, Cheongju, Korea and Department of Immunobiology, Yale University School of Medicine, New Haven, Connecticut, USA Correspondence to Tae Won Park, MD, PhD, Department of Psychiatry, Chonbuk National University School of Medicine, San 2-20, Geumam-dong, Deokjin-gu, Jeonju 561-756, Korea Tel: + 82 63 25