PubMed:32062957 / 204-211
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T31","span":{"begin":4,"end":5},"obj":"-COLON-"}],"text":"hods: 3"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok34","span":{"begin":4,"end":5},"obj":":"}],"text":"hods: 3"}