PMC:7210464 / 22909-23005
Annnotations
LitCovid-PD-CLO
| Id | Subject | Object | Predicate | Lexical cue |
|---|---|---|---|---|
| T95 | 44-56 | http://purl.obolibrary.org/obo/OBI_0000968 | denotes | instrumental |
LitCovid-sentences
| Id | Subject | Object | Predicate | Lexical cue |
|---|---|---|---|---|
| T174 | 0-96 | Sentence | denotes | We rely on meteorological data to construct instrumental variables for the endogenous variables. |