PMC:7278709 / 52-62
Annnotations
LitCovid-PMC-OGER-BB
{"project":"LitCovid-PMC-OGER-BB","denotations":[{"id":"T2","span":{"begin":3,"end":8},"obj":"PG_18;PG_1"},{"id":"T75015","span":{"begin":3,"end":8},"obj":"PG_18;PG_1"}],"text":"-2 spike g"}