PubMed:32150360 / 202-208
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T35","span":{"begin":0,"end":6},"obj":"CD"}],"text":"twenty"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok38","span":{"begin":0,"end":6},"obj":"CD"},{"id":"lookup7","span":{"begin":0,"end":6},"obj":"number"}],"text":"twenty"}