 |
| tract: 27 phrases in 6 subjects |
| Chemistry | 1 |
| Environment | 3 |
| Health care | 9 |
| Medical | 12 |
| Natural resourses and wildlife conservation | 1 |
| Statistics | 1 |
|
| tract: 27 phrases in 6 subjects |
| Chemistry | 1 |
| Environment | 3 |
| Health care | 9 |
| Medical | 12 |
| Natural resourses and wildlife conservation | 1 |
| Statistics | 1 |