| Value | Category | Cases | |
|---|---|---|---|
| 1 | Hospital or health centre | 8 |
57.1%
|
| 2 | Through previous research study | 2 |
14.3%
|
| 5 | Other (please specify) | 3 |
21.4%
|
| 8 | Unknown | 1 |
7.1%
|
| Sysmiss | 927 |