Table 14 Most common clue expressions for Source = Other
From: Enriching a biomedical event corpus with meta-knowledge annotation
Clue | Freq |
|---|---|
previously | 118 |
has been | 89 |
recently | 67 |
have been | 39 |
previous studies | 24 |
recent studies | 17 |
recent | 15 |
previous | 14 |
our previous studies | 10 |
earlier | 6 |