PubMed:32064853 / 1273-1274
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T244","span":{"begin":0,"end":1},"obj":"CD"}],"text":"1"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok276","span":{"begin":0,"end":1},"obj":"CD"}],"text":"1"}