Count | |
| 5 | |
| 2 | |
| 1 | |
| 2 | |
| 1 | |
| 2 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 3 | |
| 3 | |
| 1 | |
| 54 | |
| 9 | |
| 10 | |
| 1 | |
| 1 | |
| 3 | |
| 1 | |
| 1 | |
| 1 | |
| 6 | |
| 1 | |
| 1 | |
| 1 | |
| 2 | |
| 1 | |
| 1 | |
| 4 | |
| 1 | |
| 2 | |
| 1 | |
| 3 | |
| 1 | |
| 1 | |
| 2 | |
| 7 | |
| 4 | |
| 1 | |
| 5 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 3 | |
| 1 | |
| 2 | |
| 1 | |
| 1 | |
| 1 | |
| 2 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 2 | |
| 1 | |
| 1 | |
| 2 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
Prions/classification/genetics/isolation & purification/pathogenicity | 1 |
Prions/chemical synthesis/*genetics/*metabolism/pharmacology | 1 |
| 1 | |
| 6 | |
| 1 | |
| 229 | |
| 6 | |
| 2 | |
| 6 | |
| 1 | |
| 17 | |
| 7 | |
| 1 | |
| 1 | |
| 206 | |
| 1 | |
| 5 | |
| 893 | |
| 13 | |
| 2 | |
| 3 | |
| 1 | |
| 2 | |
| 3 | |
| 2 | |