PubMed:32077115 / 1767-1770
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T305","span":{"begin":0,"end":3},"obj":"DT"}],"text":"all"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok367","span":{"begin":0,"end":3},"obj":"DT"}],"text":"all"}