PubMed:32031570 / 3244-3249
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T659","span":{"begin":0,"end":5},"obj":"DT"}],"text":"those"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok776","span":{"begin":0,"end":5},"obj":"DT"}],"text":"those"}