PubMed:32114747 / 157-160
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T24","span":{"begin":0,"end":1},"obj":"-LRB-"}],"text":"(CO"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok26","span":{"begin":0,"end":1},"obj":"("}],"text":"(CO"}