Barkley, a psychiatry professor at the Medical University of South Carolina, is a widely recognized expert on ADD and driving.

CNN: Teen drivers with ADD a problem on the road

It approached psychiatrist and neurologist Mark George at the Medical University of South Carolina, who looked at brain scans of patients.

FORBES: Rewiring the brain

" Adds Medical University of South Carolina biochemist Bruce Hollis: "I often say its skeletal effects are the least interesting thing we know about it.

FORBES: D Is for Debate

During this period Gary Grotendorst , then an assistant professor at the Medical University of South Carolina, was testing TGF-beta's relationship to other growth factors.

FORBES: Scar Wars

The new research was carried out by scientists at the Medical College of Georgia, the University of South Carolina, and the Downtown VA Medical Center in Augusta, Georgia.

BBC: Differences found in autistic brains