PubMed:32023682 / 1376-1384
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T222","span":{"begin":0,"end":8},"obj":"NN"}],"text":"research"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok236","span":{"begin":0,"end":8},"obj":"NN"}],"text":"research"}