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Main findings from molecular genetic approaches
| Location | Gene | Population studied |
|---|---|---|
| 1q23.2 | RGS4 | Pittsburgh, USA; National Institute of Mental Health Clinical Global Impression scale, USA; New Delhi, India; Wales, UK; Dublin, Ireland |
| 6p22 | DTNBP1 | Ireland |
| 8p12-21 | NRG1 | Iceland |
| 13q34 | G72 | French-Canadian; Russia, USA |
| 22q11 | COMT | Israel; China |
| 22q11 | PRODH | USA |
| t(1q42.1; 11q14.3) | DISC1 | Scotland; Finland |
