PubMed:32220650 / 497-502
Annnotations
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok88","span":{"begin":0,"end":5},"obj":"CD"},{"id":"lookup14","span":{"begin":0,"end":5},"obj":"time"},{"id":"lookup15","span":{"begin":0,"end":5},"obj":"number"}],"text":"three"}