PubMed:32026671 / 134-141
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T21","span":{"begin":3,"end":5},"obj":"IN"}],"text":"cs of 2"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok23","span":{"begin":3,"end":5},"obj":"IN"}],"text":"cs of 2"}