Attention Deficit Disorder With Hyperactivity

• Meadowbrook Research, Inc. — Scottsdale, Arizona, United States
• Psychiatric Centers at San Diego — San Marcos, California, United States
• Alpine Clinical Research Center — Boulder, Colorado, United States
• Miami Research Associates, Inc. — Miami, Florida, United States

Not specified

• UCI Child Development Center — Irvine, California, United States

• Ontario Provincial and Demonstration Schools — Milton, Ontario, Canada
• The Hospital for Sick Children — Toronto, Ontario, Canada

• Riley Childrens Hospital — Indianapolis, Indiana, United States

• SMRI (Schuster Medical Research Institute) — Van Nuys, California, United States

• Counseling and guidence Center of the Department of education of region 9 of Tehran — Tehran, Tehran Province, Iran

• University of Texas Health Science Center at San Antonio — San Antonio, Texas, United States

• Medical University of South Carolina — Charleston, South Carolina, United States

• University of Illinois at Chicago, Institute for Juvenile Research — Chicago, Illinois, United States