PubMed:32154135 / 1065-1070
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T185","span":{"begin":0,"end":5},"obj":"DT"}],"text":"these"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok205","span":{"begin":0,"end":5},"obj":"DT"}],"text":"these"}