PubMed:32083985 / 568-574
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T92","span":{"begin":0,"end":6},"obj":"NN"}],"text":"course"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok100","span":{"begin":0,"end":6},"obj":"NN"}],"text":"course"}