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PubMed:32125873 / 1165-1167
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T209","span":{"begin":0,"end":2},"obj":"CD"}],"text":"53"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok239","span":{"begin":0,"end":2},"obj":"CD"}],"text":"53"}
MeasurableQuantitativeAnnotation
{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"N5","span":{"begin":0,"end":2},"obj":"num"}],"text":"53"}