PubMed:32023687 / 789-792
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T135","span":{"begin":0,"end":3},"obj":"WRB"}],"text":"how"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok144","span":{"begin":0,"end":3},"obj":"WRB"}],"text":"how"}