Table 1.
Characteristics of control subjects and cancer patients
| Group | Sex (M/F) | Mean age ± SD (yr) (range) | TNM staging |
| Controls | 100 (56/44) | 64 ± 6 (46-79) | // |
| Cancer patients | 93 (51/42) | 62 ± 8 (48-78) | T1-3, N0-2, M0 |
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