PubMed:32052466 / 559-562
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T90","span":{"begin":0,"end":3},"obj":"CC"}],"text":"and"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok97","span":{"begin":0,"end":3},"obj":"CC"}],"text":"and"}