PubMed:32023685 / 832-835
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T130","span":{"begin":0,"end":3},"obj":"CC"}],"text":"But"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok145","span":{"begin":0,"end":3},"obj":"CC"}],"text":"But"}