PubMed:32176772 / 511-515
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T87","span":{"begin":0,"end":4},"obj":"NN"}],"text":"date"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok95","span":{"begin":0,"end":4},"obj":"NN"}],"text":"date"}