PubMed:32052373 / 1276-1278
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T178","span":{"begin":0,"end":2},"obj":"CC"}],"text":"or"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok197","span":{"begin":0,"end":2},"obj":"CC"}],"text":"or"}