PubMed:32133152 / 1983-1989
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T300","span":{"begin":0,"end":6},"obj":"JJ"}],"text":"strict"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok356","span":{"begin":0,"end":6},"obj":"JJ"}],"text":"strict"}