PMC:7105881 / 23016-23053
Annnotations
LitCovid-PMC-OGER-BB
{"project":"LitCovid-PMC-OGER-BB","denotations":[{"id":"T442","span":{"begin":6,"end":15},"obj":"CHEBI:59132;CHEBI:59132"},{"id":"T86426","span":{"begin":6,"end":15},"obj":"CHEBI:59132;CHEBI:59132"}],"text":"d its antigenic fragments, including "}