PubMed:31992388 / 513-514
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T74","span":{"begin":0,"end":1},"obj":"-COMMA-"}],"text":","}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok80","span":{"begin":0,"end":1},"obj":","}],"text":","}