PubMed:32022276 / 853-858
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T130","span":{"begin":0,"end":5},"obj":"NN"}],"text":"class"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok142","span":{"begin":0,"end":5},"obj":"NN"}],"text":"class"}