PubMed:32074786 / 2236-2247
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T337","span":{"begin":0,"end":11},"obj":"JJ"}],"text":"alternative"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok363","span":{"begin":0,"end":11},"obj":"JJ"}],"text":"alternative"}