PubMed:32064853 / 811-813
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T145","span":{"begin":0,"end":2},"obj":"CD"}],"text":"16"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok156","span":{"begin":0,"end":2},"obj":"CD"}],"text":"16"}