PubMed:32118389 / 1538-1539
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T305","span":{"begin":0,"end":1},"obj":"NN"}],"text":"d"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok327","span":{"begin":0,"end":1},"obj":"SYM"}],"text":"d"}