PubMed:32053389 / 49-51
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T8","span":{"begin":0,"end":1},"obj":"-RRB-"}],"text":") "}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok10","span":{"begin":0,"end":1},"obj":")"}],"text":") "}