PubMed:32159237 / 516-517
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T83","span":{"begin":0,"end":1},"obj":"-LRB-"}],"text":"("}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok90","span":{"begin":0,"end":1},"obj":"("}],"text":"("}