PubMed:32019667 / 291-303
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T50","span":{"begin":0,"end":12},"obj":"NNS"}],"text":"restrictions"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok58","span":{"begin":0,"end":12},"obj":"NNS"}],"text":"restrictions"}