| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] two [noun pl] ' treatment | 9 |
|
| 2 | [prep] two months ' treatment | 5 |
|
| 3 | after two [noun pl] ' treatment | 5 |
|
| 4 | after two [noun pl] ' treatment | 5 |
|
