PubMed:32023687 / 330-337
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T55","span":{"begin":0,"end":7},"obj":"NNS"}],"text":"methods"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok63","span":{"begin":0,"end":7},"obj":"NNS"}],"text":"methods"}