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| Colon cancer | Rectal cancer | Colorectal cancer | Normal controls | |
|---|---|---|---|---|
| Subjects (n) | 8 | 8 | 16 | 20 |
| Age (mean ± SD) | 55.8 (14.7) | 55.4 (14.0) | 55.6 (14.0) | 49.6 (9.0) |
| Sex | ||||
| Male | 6 | 5 | 11 | 8 |
| Female | 2 | 3 | 5 | 12 |
| Smokers (n) | 3 | 2 | 5 | 7 |
