PubMed:32134681 / 2287-2289 JSONTXT

{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T452","span":{"begin":0,"end":2},"obj":"CD"}],"text":"45"}

{"project":"LitCovid-TimeML","denotations":[{"id":"tok539","span":{"begin":0,"end":2},"obj":"CD"}],"text":"45"}

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T23","span":{"begin":0,"end":2},"obj":"http://purl.obolibrary.org/obo/CLO_0053799"}],"text":"45"}