PubMed:32118394 / 842-849
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T131","span":{"begin":0,"end":7},"obj":"NN"}],"text":"trouble"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok140","span":{"begin":0,"end":7},"obj":"NN"}],"text":"trouble"}