PubMed:32118639 / 1591-1592
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T260","span":{"begin":0,"end":1},"obj":"POS"}],"text":"'"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok288","span":{"begin":0,"end":1},"obj":"POS"}],"text":"'"}