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| Results | BGI | Hospital* | Huidu** | Other centers |
| BGI, Beijing Genomics Institution; *, Peking University Cancer Hospital; **, Huidu Shanghai clinical laboratory. | ||||
| Total | 35 | 33 | 61 | 13 |
| Positive | 4 | 5 | 8 | 2 |
| Negative | 31 | 28 | 53 | 11 |
