PubMed:32064853 / 87-90
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T12","span":{"begin":0,"end":1},"obj":"-LRB-"}],"text":"(CO"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok13","span":{"begin":0,"end":1},"obj":"("}],"text":"(CO"}