PubMed:32077659 / 1450-1451
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T233","span":{"begin":0,"end":1},"obj":"-COMMA-"}],"text":","}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok247","span":{"begin":0,"end":1},"obj":","}],"text":","}