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Number of serotonin transporter (SERT) positive cells in medial frontal cortex of rats treated with Ritalin or saline for eleven days (2 or 12 weeks after withdrawal week latency [WL])
| Groups | SERT positive cell number per field (mean ± SE) |
|---|---|
| Control | 14.5 ± 1.8 |
| Saline 2 WL | 17.0 ± 1.4 |
| Saline12 WL | 16.1 ± 1.5 |
| Ritalin 2 WL | 33.5 ± 2.4 |
| Ritalin12 WL | 33.3 ± 2.4 |
