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The clinical information from 20 PCa patients.
| Patient number (n) | 20 |
| Age (years) | 63.8 ± 5.6 |
| *tPSA (ng/ml) | 21.57 ± 19.63 |
| **f/tPSA | 0.12 ± 0.05 |
| TNM2002 AJCC* | |
| T1 | 15 |
| T2 | 5 |
| pT2a | 3 |
| pT2b | 2 |
| Gleason score | |
| Gleason 6 | 17 |
| Gleason 7 | 1 |
| Gleason 8 | 2 |
*tPSA: total prostate‐specific antigen.
**f/tPSA: the ratio between free PSA and total PSA.
