PubMed:31994742 / 1173-1174
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T223","span":{"begin":0,"end":1},"obj":"-RRB-"}],"text":"]"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok264","span":{"begin":0,"end":1},"obj":"NN"}],"text":"]"}