PubMed:32026671 / 495-500
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T76","span":{"begin":0,"end":5},"obj":"NN"}],"text":"study"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok83","span":{"begin":0,"end":5},"obj":"NN"}],"text":"study"}