PubMed:32172546 / 157-169
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T23","span":{"begin":0,"end":12},"obj":"NN"}],"text":"significance"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok26","span":{"begin":0,"end":12},"obj":"NN"}],"text":"significance"}