PubMed:32055945 / 159-166
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T29","span":{"begin":0,"end":7},"obj":"NN"}],"text":"purpose"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok33","span":{"begin":0,"end":7},"obj":"NN"}],"text":"purpose"}