PubMed:32159237 / 268-277
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T44","span":{"begin":0,"end":9},"obj":"NN"}],"text":"knowledge"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok49","span":{"begin":0,"end":9},"obj":"NN"}],"text":"knowledge"}