PubMed:32141570 / 852-861
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T129","span":{"begin":0,"end":9},"obj":"NNS"}],"text":"documents"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok140","span":{"begin":0,"end":9},"obj":"NNS"}],"text":"documents"}