Minimal Brain Dysfunction in children (National Institute of Neurological Diseases and Blindness, Monograph No. 3) (kci.go.kr)
In fact, for many years ADHD was called «minimal brain damage» or «minimal brain dysfunction.» (babycenter.com)
In the 1950s and»60s the terms for it were minimal brain damage, Strauss Syndrome, hyperkinetic impulse disorder, minimal brain dysfunction, and hyperkinetic reaction of childhood. (educationworld.com)