PubMed:32055945 / 1135-1141
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T210","span":{"begin":0,"end":6},"obj":"NN"}],"text":"ground"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok251","span":{"begin":0,"end":6},"obj":"NN"}],"text":"ground"}