PubMed:32167524 / 413-415
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T65","span":{"begin":0,"end":2},"obj":"TO"}],"text":"To"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok71","span":{"begin":0,"end":2},"obj":"TO"}],"text":"To"}