Count | |
| 52 | |
| 11 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 2 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
Pyrrolidinones/chemistry/isolation & purification/metabolism | 1 |
| 1 | |
| 6 | |
| 14 | |
| 1 | |
| 7 | |
| 4 | |
| 3 | |
| 7 | |
| 3 | |
| 3 | |
| 5 | |
| 4 | |
| 4 | |
| 1 | |
| 4 | |
| 5 | |
| 14 | |
| 2 | |
| 1 | |
| 14 | |
| 12 | |
| 1 | |
| 1 | |
| 8 | |
| 16 | |
| 17 | |
| 12 | |
| 5 | |
| 3 | |
| 13 | |
| 1 | |
| 11 | |
| 2 | |
| 2 | |
| 4 | |
| 4 | |
| 4 | |
| 1 | |
| 1 | |
| 1 | |
| 23 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 3 | |
| 1 | |
| 2 | |
| 1 | |
| 1 | |
| 1 | |
| 48 | |
| 1 | |
| 2 | |
| 11 | |
| 1 | |
| 6 | |
| 12 | |
| 1 | |
| 2 | |
| 21 | |
| 6 | |
| 4 | |
| 1 | |
| 11 | |
| 7 | |
| 16 | |
| 4 | |
| 1 | |
| 5 | |
| 12 | |
| 3 | |
| 3 | |
| 2 | |
| 9 | |
| 8 | |
| 2 | |
| 24 | |
| 1 | |
| 4 | |