PubMed:32061200 / 1207-1218
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T216","span":{"begin":0,"end":11},"obj":"NN"}],"text":"improvement"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok235","span":{"begin":0,"end":11},"obj":"NN"}],"text":"improvement"}