PubMed:31995857 / 558-567
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T91","span":{"begin":0,"end":9},"obj":"VBD"}],"text":"described"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok100","span":{"begin":0,"end":9},"obj":"VBD"},{"id":"event21","span":{"begin":0,"end":9},"obj":"OCCURRENCE"}],"text":"described"}