PubMed:32141569 / 100-107
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T19","span":{"begin":0,"end":7},"obj":"NN"}],"text":"warning"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok22","span":{"begin":0,"end":7},"obj":"NN"}],"text":"warning"}