PubMed:32164400 / 133-148
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T18","span":{"begin":0,"end":15},"obj":"NNS"}],"text":"characteristics"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok21","span":{"begin":0,"end":15},"obj":"NNS"}],"text":"characteristics"}