PubMed:32164424 / 1104-1110
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T165","span":{"begin":0,"end":6},"obj":"NN"}],"text":"option"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok191","span":{"begin":0,"end":6},"obj":"NN"}],"text":"option"}