PubMed:32176808 / 1629-1640
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T263","span":{"begin":0,"end":11},"obj":"NN"}],"text":"preparation"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok287","span":{"begin":0,"end":11},"obj":"NN"}],"text":"preparation"}