negative control
| sample
| negative control | |
| med. pharma. | negativna kontrola |
| sample | |
| math. | vzorec |
| sampling | |
| econ. | vzorčenje |
| environ. | jemanje vzorcev |
| |||
| negativna kontrola | |||
|
negative control : 2 phrases in 2 subjects |
| Chemistry | 1 |
| Health care | 1 |