 |
| |||
| parent population; relevant population; sampled population | |||
| reference population | |||
| |||
| Reference population | |||
| population de reference: 3 短语, 2 学科 |
| 卫生保健 | 2 |
| 财政 | 1 |
|
| |||
| parent population; relevant population; sampled population | |||
| reference population | |||
| |||
| Reference population | |||
| population de reference: 3 短语, 2 学科 |
| 卫生保健 | 2 |
| 财政 | 1 |