| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Yttrium Radioisotopes | 100 | + | |
| 2 | Carbon Radioisotopes | 88 | + | |
| 3 | Tritium | 87 | + | |
| 4 | Iodine Radioisotopes | 83 | + | |
| 5 | Indium Radioisotopes | 38 | + | |
| 6 | Phosphorus Radioisotopes | 28 | + | |
| 7 | Xenon Radioisotopes | 21 | + | |
| 8 | Cobalt Radioisotopes | 19 | + | |
| 9 | Cadmium Radioisotopes | 19 | + | |
| 10 | Radioactive Tracers | 14 | + | |
| 11 | Gallium Radioisotopes | 13 | + | |
| 12 | Gold Radioisotopes | 13 | + | |
| 13 | Iridium Radioisotopes | 11 | + | |
| 14 | Chromium Radioisotopes | 11 | + | |
| 15 | Fluorine Radioisotopes | 11 | + | |
| 16 | Calcium Radioisotopes | 10 | + | |
| 17 | Mercury Radioisotopes | 10 | + | |
| 18 | Nitrogen Radioisotopes | 9 | + | |
| 19 | Selenium Radioisotopes | 8 | + | |
| 20 | Zinc Radioisotopes | 8 | + | |
| 21 | Ruthenium Radioisotopes | 8 | + | |
| 22 | Sulfur Radioisotopes | 8 | + | |
| 23 | Thallium Radioisotopes | 8 | + | |
| 24 | Strontium Radioisotopes | 8 | + | |
| 25 | Cerium Radioisotopes | 7 | + | |
| 26 | Copper Radioisotopes | 6 | + | |
| 27 | Iron Radioisotopes | 4 | + | |
| 28 | Cesium Radioisotopes | 1 | + | |
| 29 | Oxygen Radioisotopes | 1 | + |