Table 2.
Liver∕background and sphere∕background activity concentration ratios for different activity combinations.
| Combination | Liver∕background | Sphere∕background |
|---|---|---|
| C1 | 3 | 7 |
| C2 | 4 | 5 |
| C3 | 4 | 7 |
| C4 | 3 | 10 |
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