| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Radioisotopes | 100 | + | |
| 2 | Iodine Isotopes | 21 | + | |
| 3 | Yttrium Isotopes | 8 | + | |
| 4 | Carbon Isotopes | 4 | + | |
| 5 | Chromium Isotopes | 3 | + | |
| 6 | Cobalt Isotopes | 3 | + | |
| 7 | Strontium Isotopes | 3 | + | |
| 8 | Phosphorus Isotopes | 3 | + | |
| 9 | Gold Isotopes | 2 | + | |
| 10 | Gallium Isotopes | 2 | + | |
| 11 | Potassium Isotopes | 1 | + | |
| 12 | Cesium Isotopes | 1 | + | |
| 13 | Nitrogen Isotopes | 1 | + |