PubMed:32118390 / 2028-2035
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T209","span":{"begin":0,"end":7},"obj":"JJ"}],"text":"certain"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok544","span":{"begin":0,"end":7},"obj":"JJ"}],"text":"certain"}