| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Gold Radioisotopes | 100 | + | |
| 2 | Iodine Radioisotopes | 78 | + | |
| 3 | Yttrium Radioisotopes | 47 | + | |
| 4 | Sulfur Radioisotopes | 37 | + | |
| 5 | Phosphorus Radioisotopes | 24 | + | |
| 6 | Tritium | 23 | + | |
| 7 | Gallium Radioisotopes | 13 | + | |
| 8 | Indium Radioisotopes | 12 | + | |
| 9 | Carbon Radioisotopes | 11 | + |