PubMed:32149769 / 1128-1138
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T166","span":{"begin":0,"end":10},"obj":"NNS"}],"text":"activities"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok217","span":{"begin":0,"end":10},"obj":"NNS"}],"text":"activities"}