CORD-19:04c300fc145b27f210fe05c52a93de14920c17bc / 63456-63667 3 Projects
Annnotations
| Id | Subject | Object | Predicate | Lexical cue |
|---|---|---|---|---|
| T189 | 0-211 | Epistemic_statement | denotes | Although antigenic drift has been studied mainly in the HA molecule (Natali et al., 1981; Underwood, 1982; it may also occur in the neuraminidase but its extent may be restricted in some species of avian virus . |