... rs6 039 806 [32 ] 20 10,206,904rs362987 [32 ] 20 10,225,702rs3746544 [33 -35 ] 20 10, 235 ,33 4rs105 131 2 [33 ,34 ] 20 10, 235 ,33 85-HTT rs11080121 [36 ] 17 25,5 53, 218rs140701 [37 ] 17 25,562,908rs2020 936 [36 ] ... age inappropriate behaviours of inattention,hyperactivity and impulsivity. The current definition of ADHD defines the age of onset of impairing symptomsas occurring before the age of 7 years, ... Kennedy JL: Identification of DNA variants in the SNAP-25 gene and linkage study of these polymorphisms and attention-deficithyperactivity disorder. Mol Psychiatry 2000, 5(4):405-409. 34 . Brophy...