PubMed:32164424 / 1750-1756
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T256","span":{"begin":0,"end":6},"obj":"NN"}],"text":"option"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok289","span":{"begin":0,"end":6},"obj":"NN"}],"text":"option"}