PubMed:32156607 / 1373-1379
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T230","span":{"begin":0,"end":6},"obj":"NN"}],"text":"factor"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok244","span":{"begin":0,"end":6},"obj":"NN"}],"text":"factor"}