PubMed:32062875 / 17-25
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T4","span":{"begin":4,"end":7},"obj":"CC"}],"text":"cal and "}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok5","span":{"begin":4,"end":7},"obj":"CC"}],"text":"cal and "}