PMC:7780429 / 810-1207 3 Projects
Annnotations
| Id | Subject | Object | Predicate | Lexical cue |
|---|---|---|---|---|
| T12 | 1-66 | Sentence | denotes | 208 (79.7%) used surgical masks and 53 (20.3%) used filter masks. |
| T13 | 67-131 | Sentence | denotes | Of all those surveyed, 158 (51.6%) presented ‘de novo’ headache. |