PubMed:32171193 / 953-957
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T154","span":{"begin":0,"end":4},"obj":"VB"}],"text":"have"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok178","span":{"begin":0,"end":4},"obj":"VB"}],"text":"have"}