Dr. David Mrazek has been Chair of the Department of Psychiatry and Psychology at Mayo Clinic since September of 2000. His specialty is in the area of Child and Adolescent Psychiatry; however his research interests and publications cover a broad range of psychiatric illnesses that occur in patients of all ages. Most recently Dr. Mrazek has begun several new research initiatives in genomics. He has collaborated with other investigators in studying various links between genomic variability and psychiatric illnesses such as depression, bipolar illness, and attention deficit hyperactivity disorder.