PubMed:32075365 / 809-820
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T134","span":{"begin":0,"end":11},"obj":"JJ"}],"text":"multicenter"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok141","span":{"begin":0,"end":11},"obj":"NN"}],"text":"multicenter"}