PubMed:32055945 / 788-789
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T135","span":{"begin":0,"end":1},"obj":"CC"}],"text":"±"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok153","span":{"begin":0,"end":1},"obj":"NN"}],"text":"±"}