1. Arthur D. Anastopoulos, PhD, is an assistant professor of psychiatry and pediatrics and chief of the Attention Deficit-Hyperactivity Disorder Clinic. Author is member of the faculty at the University of Massachusetts Medical School in Worcester. Address: Arthur D. Anastopoulos, ADHD Clinic, University of Massochwetts Medical Center, 3 7Harvard St., Worcester, MA 01609.
2. George J. DuPaul, PhD, is an assistant professor of psychiatry. Author is member of the faculty at the University of Massachusetts Medical School in Worcester.
3. Russell A. Barkley, PhD, is a professor of psychiatry and neurology and director of psychology. Author is member of the faculty at the University of Massachusetts Medical School in Worcester.