Pedigree disequilibrium test (PDT) replicates association and linkage between DRD4 and ADHD in multigenerational and extended pedigrees from a genetic isolate. - Arcos-Burgos, M.; Castellanos, F.X.; Konecki, D.; Lopera, F.; Pineda, D.; Palacio, J.D.; Rapoport, J.L.; Berg, K.; Bailey-Wilson, J.; Muenke, M. (Molecular Psychiatry, 2004)