| Aktiva substanser | Betyg | Bibliogr. | Expandera | |
|---|---|---|---|---|
| 1 | Jodradioisotoper | 100 | + | |
| 2 | Galliumradioisotoper | 41 | + | |
| 3 | Tritium | 40 | + | |
| 4 | Indiumradiosotoper | 27 | + | |
| 5 | Kväveradioisotoper | 27 | + | |
| 6 | Fluorradioisotoper | 23 | + | |
| 7 | Kromradioisotoper | 23 | + | |
| 8 | Kolradioisotoper | 19 | + | |
| 9 | Yttriumradioisotoper | 13 | + | |
| 10 | Talliumradioisotoper | 12 | + |