PubMed:32171193 / 4-15
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T1","span":{"begin":6,"end":8},"obj":"IN"}],"text":"ction of pr"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok2","span":{"begin":6,"end":8},"obj":"IN"}],"text":"ction of pr"}