PubMed:32061066 / 1263-1268
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T255","span":{"begin":0,"end":5},"obj":"IN"}],"text":"while"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok285","span":{"begin":0,"end":5},"obj":"IN"}],"text":"while"}