Table 2.
Tumorigenicity of ES-2 cells at subcutaneous injection site.
| Tumors incidence/number of injections | ||||
|---|---|---|---|---|
|
|
||||
| Group | (0.75–1) × 105 | 1 × 104 | 1 × 103 | 1 × 102 |
| Cultured SP | 4/5 | 4/5 | 3/5 | 3/5 |
| Cultured non-SP | 5/5 | 5/5 | 3/5 | 0/5 |
| Nonselected | 5/5 | 5/5 | 3/5 | 1/5 |
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