PubMed:32061200 / 1124-1128
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T196","span":{"begin":0,"end":4},"obj":"PRP"}],"text":"them"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok215","span":{"begin":0,"end":4},"obj":"PRP"}],"text":"them"}