PubMed:32061066 / 1069-1070
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T209","span":{"begin":0,"end":1},"obj":"-LRB-"}],"text":"("}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok228","span":{"begin":0,"end":1},"obj":"("}],"text":"("}