PubMed:32159237 / 1593-1597
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T277","span":{"begin":0,"end":4},"obj":"NN"}],"text":"bias"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok300","span":{"begin":0,"end":4},"obj":"NN"}],"text":"bias"}