However, there are also reports indicating no association at all between ADHD and the VNTR of DAT gene (9-repeat/10-repeat, 10-repeat/10-repeat, and 10-repeat/11-repeat genotypes) [89], no association between the 10-repeat/10-repeat allele with ADHD [90], and no association between ADHD and the 9-repeat or the 10-repeat alleles for this polymorphism [91]. The gene discussed is SLC6A3; the disease is attention deficit-hyperactivity disorder.