PubMed:32007621 / 55-67
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T11","span":{"begin":0,"end":12},"obj":"VBD"}],"text":"investigated"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok14","span":{"begin":0,"end":12},"obj":"VBD"},{"id":"event1","span":{"begin":0,"end":12},"obj":"I_ACTION"}],"text":"investigated"}