| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | of a public [noun] | 207 |
|
| 2 | a public health [noun] | 33 |
|
| 3 | of public health [noun] | 33 |
|
| 4 | of a health [noun] | 28 |
|
| 5 | of a public health | 7 |
|
