Absence of the 7-repeat variant of the DRD4 VNTR is associated with drifting sustained attention in children with ADHD but not in controls
Katherine A Johnson, Simon P Kelly, Ian H Robertson, Edwina Barry, Aisling Mulligan, Michael Daly, David Lambert, Caroline McDonnell, Thomas J Connor, Ziarih Hawi, Michael Gill, Mark A Bellgrove
American Journal of Medical Genetics Part B: Neuropsychiatric Genetics | WILEY | Published : 2008
This work was supported by grants from the Health Research Board of Ireland, Science Foundation Ireland and the Irish Higher Education Authority's Programme for Research in Third-Level Institutions. KAJ is supported by the Health Research Board of Ireland. We would like to thank Dr. David Hevey for statistical advice, Aoife Daibhis, Amy Watchorn and Michelle Keavey for data collection, the referring child and adolescent psychiatrists from the Health Service Executive, South Western, Eastern and Midlands areas, the Lucena clinics, and all the participating children and their families.