PMC:7795804 / 19467-19675
Annnotations
LitCovid-sentences
| Id | Subject | Object | Predicate | Lexical cue |
|---|---|---|---|---|
| T115 | 21-197 | Sentence | denotes | Moreover, the survey sampling was based on an online invitation, which does not allow for generalization because the population that does not use the Internet was not explored. |