PubMed:32108351 / 961-964
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T156","span":{"begin":0,"end":3},"obj":"DT"}],"text":"all"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok185","span":{"begin":0,"end":3},"obj":"DT"}],"text":"all"}