PMC:7212965 / 9515-9774
Annnotations
LitCovid-sentences
| Id | Subject | Object | Predicate | Lexical cue |
|---|---|---|---|---|
| T62 | 9-133 | Sentence | denotes | For studies from the United States, we continued to monitor major journals for additional publications until April 19, 2020. |
| T63 | 135-170 | Sentence | denotes | Study Selection and Data Extraction |