PubMed:32049687 / 1056-1061
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T180","span":{"begin":0,"end":5},"obj":"IN"}],"text":"under"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok200","span":{"begin":0,"end":5},"obj":"IN"}],"text":"under"}