PubMed:32062957 / 574-578
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T92","span":{"begin":0,"end":4},"obj":"NN"}],"text":"mean"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok99","span":{"begin":0,"end":4},"obj":"VB"},{"id":"event24","span":{"begin":0,"end":4},"obj":"OCCURRENCE"}],"text":"mean"}