PubMed:32118390 / 190-195
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T26","span":{"begin":0,"end":5},"obj":"NN"}],"text":"study"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok30","span":{"begin":0,"end":5},"obj":"NN"}],"text":"study"}