 |
| perturbação: 201 phrase in 24 subjects |
| Antennas and waveguides | 1 |
| Automatic control | 2 |
| Communications | 12 |
| Earth sciences | 9 |
| Economy | 2 |
| Electricity generation | 1 |
| Electronics | 12 |
| Environment | 10 |
| Finances | 5 |
| General | 6 |
| Health care | 63 |
| International Monetary Fund | 4 |
| Labor law | 2 |
| Law | 5 |
| Life sciences | 6 |
| Magnetics | 11 |
| Mathematics | 4 |
| Medical | 35 |
| Metallurgy | 1 |
| Natural sciences | 1 |
| Politics | 2 |
| Social science | 1 |
| Statistics | 4 |
| Transport | 2 |