PubMed:32134681 / 137-148
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T25","span":{"begin":0,"end":11},"obj":"VB"}],"text":"investigate"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok29","span":{"begin":0,"end":11},"obj":"VB"},{"id":"event12","span":{"begin":0,"end":11},"obj":"OCCURRENCE"}],"text":"investigate"}