PMC:7463108 / 4584-4711
Annnotations
LitCovid-sentences
| Id | Subject | Object | Predicate | Lexical cue |
|---|---|---|---|---|
| T39 | 10-105 | Sentence | denotes | The first phase began in the late 1990s with an increase in the number of prescription opioids. |
| Id | Subject | Object | Predicate | Lexical cue |
|---|---|---|---|---|
| T39 | 10-105 | Sentence | denotes | The first phase began in the late 1990s with an increase in the number of prescription opioids. |