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Genotype distribution of 40-bp VNTR polymorphism in ADHD and controls.
| SLC6A3 gene | ||||||
|---|---|---|---|---|---|---|
| 9R allele | Genotype | |||||
| + | − | 9R/9R | 9R/10R | 10R/10R | other | |
| nADHD | 37 | 37 | 2 | 34 | 36 | 2 |
| nControl | 38 | 38 | 4 | 34 | 36 | 2 |
| nTotal | 75 | 75 | 6 | 68 | 72 | 4 |
Other: ADHD: 7R/9R and 10R/11R; Control: 8R/9R and 7R/9R.
