PubMed:32023681 / 497-499
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T75","span":{"begin":0,"end":2},"obj":"TO"}],"text":"To"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok87","span":{"begin":0,"end":2},"obj":"TO"}],"text":"To"}