collocation | frequency |
---|---|
lofa county | 7 |
west africa | 4 |
ebola treatment | 3 |
stop ebola | 3 |
peter explained | 2 |
health care | 2 |
evaded detection | 2 |
world health | 2 |
health organization | 2 |
treatment centers | 2 |
beat ebola | 2 |
collocation | frequency |
---|---|
world health organization | 2 |