PubMed:32172226 / 748-753
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T115","span":{"begin":0,"end":5},"obj":"DT"}],"text":"these"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok128","span":{"begin":0,"end":5},"obj":"DT"}],"text":"these"}