PubMed:32226287 / 694-699
Annnotations
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok128","span":{"begin":0,"end":5},"obj":"CD"},{"id":"lookup22","span":{"begin":0,"end":5},"obj":"time"},{"id":"lookup23","span":{"begin":0,"end":5},"obj":"number"}],"text":"three"}