PubMed:32058086 / 19-22
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T3","span":{"begin":0,"end":3},"obj":"WRB"}],"text":"how"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok4","span":{"begin":0,"end":3},"obj":"WRB"}],"text":"how"}