CORD-19:12f1cc78e99a0b82f3225d10abe9a5649f1b33fc / 3698-4006 6 Projects
Annnotations
| Id | Subject | Object | Predicate | Lexical cue |
|---|---|---|---|---|
| TextSentencer_T19 | 0-308 | Sentence | denotes | The present study questioned whether the prevalence of antibodies to the four HCoV strains would be different in nasal secretions than in serum of older adult veterans with underlying chronic obstructive pulmonary disease (COPD) who participated in Department of Veterans Affairs Cooperative Study 448 (18) . |