PubMed:32134681 / 858-862
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T138","span":{"begin":0,"end":4},"obj":"NN"}],"text":"mean"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok154","span":{"begin":0,"end":4},"obj":"VB"}],"text":"mean"}