M El-Faddagh et al.
Journal of neural transmission (Vienna, Austria : 1996), 111(7), 883-889 (2004-06-19)
In recent years, a growing number of studies has focused on the dopamine D4 receptor gene (DRD4) as mediating the susceptibility to attention-deficit/hyperactivity disorder (ADHD). While their results are contradictory, the reason for this inconsistency remains as yet unclear. The