| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | patients ' [noun] | 259 |
|
| 2 | [noun] ' problem | 70 |
|
| 3 | [noun pl] ' problem | 66 |
|
| 4 | patients [unc] problem | 11 |
|
| 5 | patient ' problem | 11 |
|
