PubMed:32052373 / 943-953
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T132","span":{"begin":0,"end":10},"obj":"NNS"}],"text":"procedures"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok150","span":{"begin":0,"end":10},"obj":"NNS"}],"text":"procedures"}