PubMed:32026671 / 922-927
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T152","span":{"begin":0,"end":5},"obj":"DT"}],"text":"these"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok162","span":{"begin":0,"end":5},"obj":"DT"}],"text":"these"}