PubMed:32172226 / 1377-1381
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T219","span":{"begin":0,"end":4},"obj":"IN"}],"text":"than"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok247","span":{"begin":0,"end":4},"obj":"IN"}],"text":"than"}